Analysis of the Game Behavior of Smart Community Regulatory Participants to Co-Create the Smart City: Post-Human Stakeholder Perspectives

. Te sustainable development of smart community is the key to China’s grassroots governance and also the general trend of China’s urban modernization. In the supervision of the smart community, the optimization of the behavior of the regulatory subject cannot be separated. Previous studies have focused more on how subjects participate in supervision and less on the behavior of stakeholders in the game. Tis paper analyzes the game behavior of regulatory participants in the process of sustainable development of smart community and studies the optimization strategy of regulatory behavior according to the game behavior logic among participants. Te results show the following. (i) Government behavior plays a leading role in supervision. (ii) When the government invests resources in the screening of third-party evaluation agencies and service purchase and mainly adopts policy punishment methods for stakeholders with rent-seeking behavior, the probability of regulatory participation stakeholders’ positive behavior is the greatest. (iii) Te improvements should be made from the aspects of information network construction, the refnement of reward and punishment measures, and the improvement of evaluation party access rules. Tis not only helps to enhance the good supervision situation of the supervision enthusiasm of the participants but also can realize the self-discipline operation of the smart community and enhance the responsibility consciousness of the evaluation institutions.


Introduction
At present, the rapid growth of urban smart community population is an important trend of smart community development in China.China is facing the current situation of sudden increase in urban population and increasing pressure on smart community management.China has given a positive response and support to the construction of the smart community management system and the improvement of the supervision of smart community services [1] and issued a series of policies to help promote the sustainable development of smart communities.For example, the opinions on deepening the construction of smart communities jointly issued by nine government departments in China put forward the requirements of strengthening the supervision of smart community services [2].Te opinions of the Ministry of Civil Afairs on vigorously cultivating and developing smart community social organizations issued by the Ministry of Civil Afairs clarify the overall requirements for the cultivation of smart community [3].
With the continuous improvement of the legal supervision of smart community, the operation of smart community is also gradually optimized, and the service supply of smart community is also moving towards high quality.At the same time, the strict supervision of the smart community provides a reliable guarantee for the sustainable development of the communities.Although the regulatory problem of wisdom community has been the focus of the relevant government departments, there are still problems in the wisdom community regulation, such as the legal pertinence of the weak supervision system, the criticism of the supervision subject, the light practice of the supervision law, the lack of feedback mechanism and feedback mechanism setting in the supervision process, and the weak awareness of the system supervision of the community residents.Tese practical problems become the crux of the wisdom community regulation and also greatly hinder the healthy development of wisdom community [4].
From the current model of smart community supervision, China still adopts the model of trinity supervision of the government and the market society.According to the current regulatory efect, the multi-subject regulatory model still needs to be improved.As the leader of smart community supervision, the government should carry out active supervision from the aspects of legislation, supervision, government purchase evaluation services, and so on.However, when it comes to purchasing regulatory services, there is rent-seeking behavior in smart communities.Terefore, the strict supervision of the smart community depends only on the supervision of the government, which is not enough to form a perfect regulatory system.To promote the upgrading of the supervision level, we should focus on coordinating the game behavior of multiple subjects.
At present, the research on the supervision of smart community is mainly conducted from two perspectives: diferences in game behavior of diferent participants and factors infuencing game behavior [6].From the perspective of the diferences in the game behaviors of diferent participants, the game behavior in the regulation will produce diferent efects with the participation or withdrawal of diferent subjects [7].In the policy dissemination of employment supervision, if the employee as the subject of the game is not considered, the efect of mutually benefcial policy communication will be greatly reduced.Similarly, in the process of fnancial product supervision, it is more conducive to strengthening the timeliness of supervision when they join the weak investors in the game [8].Scholars show that the behavior diferences of diferent game subjects are closely related to process of the game.When the subject of the game is comprehensively considered, the study of regulatory efectiveness will open up new ideas [9].Tese statements provide the logical basis for a comprehensive consideration by the participants.
From the perspective of game behavior factors, scholars have found that in the process of regulatory game, information asymmetry, incentive policy, the interests of the resource allocation, and commitment and efectiveness of threat are important factors afecting game behavior.Te number of the game will change the behavior of the subject, so how to change the repetition of the game to grasp the efect of regulation is also valuable research direction [10].
According to the theoretical basis of the above scholars, this study, from the comprehensive consideration of the participants, not only identifes the third-party evaluation agency as one of the game subjects but also extends the new research perspective and focuses the problem on the supervision of government purchase.Tis study constructs the game model to clarify the role of each stakeholder in regulation.In addition, the paper analyzes the key factors affecting the game behavior of each subject and provides theoretical contributions for subsequent research.
Based on the principal-agent theory and the evolutionary game theory, the rest of this paper is organized as follows.Section 2 proposes the theoretical background and determines the stakeholders of the game.Te game behavior analysis of multiple participants in smart community supervision is described in Section 3, and Section 4 describes the simulation analysis of the game behavior of participants in smart community supervision.Section 5 proposes countermeasures in view of research.Finally, in Section 6, the theoretical implications and limitations of this study and the direction of future research are briefy discussed.Te theory aims to study the restriction mechanism between the principal and the agent and the optimal way to complete the contractual relationship between the two sides.Regulators and agents often have information asymmetry in regulation, and thus the confict can be analyzed by the principal-agent theory.Te research, development, and extensive application of the principal-agent theory in China mainly focuses on the supervision of investment and fnancing platforms, supply chain supervision, and PPP projects.Te application of principal-agent theory in the supervision process of government procurement behavior is very common.From the perspective of the applicability of wisdom community regulation research, wisdom community regulation exists and government purchases third-party evaluation agency services, in order to optimize the supervision process.In the evaluation process of the third party, the government seeks to maximize regulatory benefts, and evaluation agencies may, because of the wisdom community rent-seeking behavior, choose not to give the actual evaluation results [11], which leads to conficts of interest between the government, agency, and the wisdom community, thus afecting the efect of regulation.It can be seen that the principal-agent theory has applicability and theoretical support value in the research of intelligent community supervision.

Analysis on the Behavior of Evolutionary Game Teory and Multiple Participants Based on Smart Community.
Evolutionary game theory is gradually developed from Darwin's evolution theory and Lamarck's genetics theory and refers to the process in which game parties reach a stable equilibrium state through long-term dynamic evolution.At present, Chinese scholars have deeply studied and established the evolutionary game model, including the fnancial platform supply and demand cooperation strategy model [12], the product quality tripartite supervision model, the 2 Health & Social Care in the Community Internet multi-regulatory game model, and the environmental multi-party cooperative protection game model.From the perspective of the applicability of evolutionary game theory in the research of intelligent community regulation, due to the information asymmetry and uncertainty, the intelligent community and third-party government procurement evaluation agencies have the characteristics of limited rationality, thus forming a stable state among multiple subjects.

Te Government.
As an important subject of quality supervision of smart community service, the government is responsible for ensuring the service level of smart community.Note that the Chinese government in wisdom community regulatory way has certain Chinese characteristics [8].First of all, the combination of political parties and governments and supervision models responds to Xi Jinping's new socialist and Chinese characteristics [13].Moreover, the government should strengthen the supervision of community institutions from the ideological and political aspects.Second, community residents introduce the situation of residents' participation and government supervision through online platforms.Terefore, in this study, the defnition of government covers three aspects: civil afairs departments, grassroots party organizations, and community residents.Tis is a unique way that Chinese party organizations and government organizations coordinate and actively participate in the community residents to carry out the supervision work from the bottom up [14].

Smart Community.
Smart community relies on advanced technology systems to provide intelligent services to community residents.In the regulatory game by regulators, compared with the general community, especially smart community, there is a need for more intelligent technology and personalized services to support operations, so the regulation of smart community needs a third-party professional to conduct comprehensive evaluation [15].Te research on smart community supervision shows that, frst of all, the strategy of government purchasing regulatory services has been widely used in practice.However, when the government buys evaluation services, the smart community has rent-seeking behavior from third parties, which afects the regulatory efect.Secondly, from the perspective of community resource allocation, it can be seen that there is unbalanced allocation of resources caused by regional advantages and policy support in China [16].How to coordinate and integrate resources to ensure their sustainable development will become a new problem faced by smart communities.Tus, it can be seen that, as the recipient of supervision, the subject position of smart community in the supervision process is beyond doubt.

Tird-Party Professional Evaluation Agency.
At present, the main way for China's third-party evaluation agencies to participate in the supervision of smart communities is for the government to purchase.Tat is, the government gives part of the professional content to forproft evaluation agencies to evaluate and obtain results, so as to achieve the efect of professional supervision [17].Terefore, for the supervision of smart communities and even various industries, the third-party professional evaluation institutions are all important regulatory participants, which not only undertake professional regulatory capabilities but also supplement a part of the regulatory functions of the government [18].

Behavior Model and Assumption Construction of Multiple
Participants.In the supervision process of smart communities, civil afairs departments generally adopt the method of government procurement to involve third-party institutions in the supervision of insufcient professional supervision content.In response to regulation, smart communities may exhibit rent-seeking behavior in agency assessments to increase self-interest.In order to seek their own survival and development, the third-party organization is faced with the choice of whether to accept the rent-seeking of the smart community.Te regulatory behavior of the third-party organization in the smart community occurs directly, and compliance with the evaluation process will also have an important impact on the regulatory efect.Tis is the logic of the game behavior of the government, smart community, and third-party organizations in the process of smart community supervision.Te relationship between the three is shown in Figure 1.Te solid line indicates that regulatory behavior will inevitably occur, and the dotted line indicates that regulatory behavior will occur randomly.
Assumption 1.In regulation, the government enters participant x, the smart community as participant y, and the third-party evaluation agency as participant z.Te behavior selection of the three subjects is a dynamic process in the short-term process.With the increase of the number of repeated games, the process will stabilize and fnally form the optimal strategy.Assumption 2. Te government's behavior in the regulatory process includes (strict regulation, loose regulation).Under the strict regulatory strategy, the government conducts sampling inspections of the smart community assessed by the third-party organizations.Under the loose regulation strategy, the government's regulatory awareness is not strong, and it fully accepts the evaluation results of the thirdparty institutions.
Assumption 3. Te smart community strategy selection is (self-discipline, not self-discipline), and the smart community meets operating standards and will cooperate truthfully with the supervision and evaluation of the third- Health & Social Care in the Community party organization, without producing rent-seeking behavior.In the state of not self-discipline, the smart community cannot meet operating standards and will choose to seek rent from the third party to avoid punishment by the civil afairs authorities.
Assumption 4. Professional evaluation agencies in the game process accept or refuse rent-seeking behaviors.If they choose to accept, the third-party organization will deliberately relax standards in the regulatory process, and it is possible to modify and optimize the smart community.If the third-party organization chooses to refuse, it will adhere to strict regulatory standards, according to the requirements of the government evaluation, and obtain scientifc and reasonable evaluation results.
Assumption 5. When the government, smart community, and third-party assessors are in the initial stages of the game, the possibility of active regulatory behavior is x (x∈[0, 1]), if the "loose regulation" is 1-x; similarly, the possibility of selfregulatory behavior is y (y∈[0, 1]).When "not selfdiscipline," the ratio is 1-y; when the third-party assessors adopt "refuse rent-seeking" strategy, z (z∈[0, 1]) and "accept rent-seeking" is 1-z.
Assumption 6. Te relevant parameters of the government, the smart community, and third-party professional evaluation agencies in the smart community regulatory order are set out in Table 1.
According to the above parameters and assumptions, construct the interests of government, smart community, and third-party professional evaluation agencies as shown in Table 2. 2, we get the following.

Copy Dynamic Analysis of Government Behavior
Choice.For the government, assuming that when the government behavior is "strict regulation," the gain is L 1 , and the behavior is "loose regulation," the gain obtained is L 2 , and L represents the average of earnings, calculated by columns, and the expression of ( It can be concluded that the dynamic equation of government replication is ( Tis is now available for the F(x) guidance: Te stability principle of the equation states that only if F(x) � 0 and dF(x)/d(x) < 0, a stable strategy can be formed.

Government
Smart community Tird-party evaluation 4 Health & Social Care in the Community Under the circumstances, F(x) � 0, and it means that, regardless of any value taken by x, the choice of the government does not change due to the change of time, which is an equilibrium and stable state.

Conclusion 2.
In this case, it can be seen that at this point, x � 1 is the stable point.Tat is, when the smart community chooses not self-discipline operation, the third-party institutions choose to accept rent-seeking.Te government's active regulation of public benefts outweighs the regulatory cost.At the same time, due to the lack of self-discipline in the smart community and the refusal of third-party institutions to rent-seeking.Te government, without additional spending incentives, chose active regulation as the optimal strategy.

Conclusion 3.
It can be seen that smart communities choose self-discipline management, while third-party institutions choose not to accept rent-seeking.Te government is regulating behaviour.Public revenue is less than the sum of the additional spending and positive regulatory costs awarded by smart communities and third-party agencies.In the case of stability point for x � 0, the government negative regulatory behavior can achieve higher returns.
It can be seen from the above conclusions that the choice of government regulatory behavior has a certain synergistic relationship with the behavior of smart community and third-party professional evaluation agencies, and the choice of government behavior is infuenced by the game behavior of other subjects.

Copy and Dynamic Analysis of Smart Community
Behavior Selection.For smart community, the beneft of smart community in choosing the "self-discipline management" behavior is N 1 , the beneft of choosing the "undisciplined management" behavior is N 2 , and the average return is N; when smart community chooses diferent behaviors, N 1 , N 2 , N, the expression is as follows.
Te expected return of smart community when choosing "self-discipline management" is Te cost of regulation incurred when the government regulates it loosely P y1 Normal income from the operation of smart community

P y2
When the government strictly supervises, it gives smart community self-discipline management rewards (P y2 > P y3 ) P y3 Additional credit benefts derived from the self-management of smart community P y4 Additional benefts earned when smart community is not disciplined Te cost of the smart community in self-regulation C y2 Te cost of smart community paying when they are not disciplined

C y3
Additional costs incurred when smart community is not self-disciplined (including rent-seeking costs)

C y4
Punishment of smart community for not being self-disciplined when the government strictly supervises them (including penalties for rent-seeking activities) P z1 Normal income of third parties P z2 Tird parties accept additional proceeds from rent-seeking

P z3
Rewards for refusing rent-seeking to third parties when governments actively regulate them C z1 Cost of third-party supervision (assuming equal rent-seeking)

C z2
Tird-party agencies accept rent-seeking penalties when the government strictly supervises them Health & Social Care in the Community Health & Social Care in the Community Te expected income of smart community to choose "operating without self-discipline" is Te average expected return for a smart community is Te replication dynamic equation for smart community behavior selection is When F(y) guide is available, Te equation stability principle states that the policy stability requirement is F(y) � 0 and dF(y)/d(y) < 0.

Conclusion 4.
At that time, x(1 − z)P y2 + zP y2 + P y3 − C y1 + xC y4 − P y4 + C y2 + C y3 � 0, F(y) � 0, and when the value of y is constantly changing, the behavior change of the smart community cannot afect the stable equilibrium state.
and in this case, the stabilization point is y � 1.It means that when the government behavior is strict supervision and the behavior of the third-party organization does not accept rent-seeking by the smart community, the rewards of selfdiscipline and additional credit benefts obtained by the smart community are greater than their cost, and the smart community will tend to self-operate to maximize their own interests.
> 0, and in this case, it can be seen that the normal proft of smart community, reputation income, is less than its operating cost, so it is the best strategy.

Copy Dynamic Analysis of the Selection Strategy of the Tird-Party Evaluation Agencies.
For the third-party appraisal agency, the third-party appraisal agency is "refuse rent-seeking," its income is S 1 , the revenue from adopting the "accept rent-seeking" strategy is S 2 , and the average return is S, and when a third party chooses a diferent behavior, S 1 , S 2 , S, the expression is as follows.
When a third party "rejects rent-seeking," S 1 is When a third party chooses "accept rent-seeking," S 2 is Te average expected income for a third party is Health & Social Care in the Community Te derivative of F(z) is Te stability conditions for behavioral selection at this time are Conclusion 7. At that time, x(P z3 + C z2 ) − P z2 � 0, F(z) � 0, and the value change of z and the behavior choice change of the third-party professional evaluation institutions cannot afect the equilibrium and stable state.
> 0, and in this case, stable point: x � 1.At this time, if the government actively regulates the behavior, the third party gets the punishment of accepting rentseeking more than the reward of refusing to accept rentseeking.At this time, the third party chooses to refuse rentseeking as the best strategy.

Conclusion 9.
At that time, x(P z3 + C z2 ) − P z2 > 0, F ′ (0) > 0, F ′ (1) < 0, and in this case, when the third party accepts rent-seeking, the additional proft received is greater than the punishment received.Even if the government adopts strict supervision, the third party receives less punishment than its proft, and then the third party chooses to accept rent-seeking as optimal strategy.

Stability Analysis of Behavior Selection by Government, Smart Community, and Tird-Party Professional Evaluation
Agencies.According to the stability strategy, the three equations equal to 0, and x, y, and z are played.According to the replication dynamic equations of the government, the smart community, and the third-party agency, the equilibrium points of the government, the smart community, and the third-party professional evaluation agency are (0.0.0), (0.0.1), (0.1.1),(0.1.0),(1.0.0).( 16) Jacobian matrix is used to analyze the stable equilibrium point, and the Jacobian matrix of the government, pension institutions, and third-party institutions can be obtained as follows: Te Russian mathematician and mechanic A.M.'s system stability theory states that the condition to meet the stability point of the system is δ < 0. When δ > 0, the system is unstable.Te analysis results are shown in Table 3.
According to the table, when the government, smart community, and third parties are in the coordinated order of the smart community, stable strategies are formed in different situations.Te following is a strategy stability analysis for diferent situations.Situation 1. Te balance point is (0.0.0), that is, when the government supervises loosely, smart community is not selfdisciplined, and third-party organizations accept rentseeking.Te constraints to form a stability strategy are In this situation, the income of smart community from non-self-disciplined operation is greater than all its costs, and they do not need to bear the punishment costs caused by nonself-disciplined operations.Compared to the cost of selfdisciplined operation, it is reduced and income is increased.Terefore, smart community will choose non-self-disciplined operation as their business strategy.For the third party, the benefts of accepting rent-seeking are not only greater than the cost but also do not bear the risk of government punishment.

8
Health & Social Care in the Community (0, 0, 0) Health & Social Care in the Community Situation 2. Te balance point is (0.1.0),that is, when the government regulates negatively, smart community operates in self-discipline, and third-party organizations accept rentseeking, the constraints for forming the stability strategy are In this case, when the government has a loose regulation behavior, the costs of its supervision and reward are compressed.For the government, revenue from the strict regulation is less than the negative regulation cost.From the perspective of economic benefts, the government will have loose regulation behavior.For smart community, although they cannot get the government reward for their self-discipline management, the harvest of extra credit income and normal income of the sum is greater than the cost of self-discipline management and less than the cost of not self-discipline management, so compared to bearing the cost of rent-seeking and lost customer opportunity cost, the smart community is more inclined to choose self-discipline management to gain profts.Tis precondition leads to the rent-seeking cost of the third party refusing to take regulatory measures greater than the normal benefts.However, due to the loose regulation of the government, the reward of refusing rent-seeking and the penalty of accepting rentseeking will not happen.Te additional benefts of accepting rent-seeking and the regulatory benefts can always add up to more than the regulatory costs.Terefore, the third party will choose to accept rentseeking as the optimal strategy.Situation 3. Te balance point is (1.0.0), that is, when the government actively manages, smart community is not selfdisciplined to operate, and third-party organizations accept rent-seeking.Te constraints to form a stability strategy are In this case, the smart community chooses to self-regulate business revenue.Government incentives and credit income are lower than rent-seeking income.Although the government penalizes smart communities for indiscipline, the penalties are still small relative to rent-seeking income.Terefore, the smart community will choose non-self-regulated management strategies as the best choice.Te third party accepting rent-seeking will also be punished by the government, but the income it accepts is greater than the penalty.Terefore, accepting rent-seeking becomes the best choice for third parties.For the government, although the cost of strict supervision is greater than the cost of loose supervision, the public benefts of strict supervision are greater than the cost of supervision.Terefore, under comprehensive consideration, the government will choose active regulation as its behavioral strategy.Situation 4. Te balance point is (1.0.1), that is, when the government strictly supervises, the smart community does not self-regulate the operation, and the third-party organizations refuse to seek rent-seeking.Te constraints to form a stability strategy are At this point, the government chooses active regulation and does not provide incentives for smart community selfdiscipline, and the public income and punishment for smart community are greater than the cost of active regulation, although it still wants to give a third party rent-seeking reward; compared with the above benefts, it is still able to obtain benefts, so the government will choose active regulation as optimal strategy.For smart community, the additional income and rent-seeking income from normal operation are greater than the cost, so smart community will choose non-self-discipline operation as a strategy to save costs and obtain more benefts.For the third-party institutions, under the strategy of government active regulation strategy, if the third party accepted rent-seeking, the punishment is greater than normal, additional income, and the third-party operating income and government incentives are greater than the regulatory cost, so regardless of cost or beneft, it chooses to refuse rent-seeking which is the best strategy of the third party.Situation 5. Te balance point is (1.1.0),that is, when the government strictly supervises, smart community selfoperates, and third parties accept rent-seeking, the constraints for forming the stability strategy are When the public income of the government strictly supervises, it is more than the cost of the government and the reward of the smart community for self-regulation, and it can obtain a certain income when punishing the thirdparty organization, and the government department will choose the strict supervision strategy.From another point of view, if, in this case, the smart community chooses not to operate as self-disciplined, then the cost and punishment of its non-self-disciplined operation are greater than all its benefts.Terefore, considering the diferent outcomes of 10 Health & Social Care in the Community these two strategies, the smart community will choose to operate as self-disciplined.For the third party, accepting rent-seeking benefts will be greater than refusing rentseeking, and the regulatory cost and punishment are less than accepting rent-seeking benefts.No matter what strategy, the third-party institutions have benefts, and the third party accepts rent-seeking when there is more income.Terefore, the third party chooses to accept rentseeking as the best strategy.
Situation 6. Te balance point is (1.1.1),that is, when the government strictly supervises, the smart community selfoperates, and third-party organizations refuse to seek rent, the constraints to form a stability strategy are If in active regulation, public income is greater than the sum of costs, then the government will choose the strict regulation strategy.At the same time, when the government strictly regulates the smart community, the benefts of selfmanagement, additional credit benefts, and government incentives will be greater than the benefts of self-management.Tis is greater than the benefts of self-regulation by the intelligent community, which chooses a self-regulation strategy.It is difcult for the third party to obtain government rewards through the smart community self-discipline management and government supervision strategy.Smart communities do not shirk their responsibilities through rent-seeking.Te benefts of a third party are greater than their costs and greater than their choice to accept rent-seeking.In this case, the third party chooses to reject the rent-seeking strategy.
Terefore, in smart communities, the stable strategy selection of the government, smart communities, and thirdparty professional evaluation agencies needs to go through the process of evolutionary game.Te change of one agent's behavior is accompanied by the change of other agents' strategy choice.Te optimal combination state is (1.1.1),and the following conditions should be met:

Simulation and Analysis of the Game Behavior of Regulatory Participants in the Smart Community
In order to achieve the optimal state of the evolution of the game behavior of the smart community regulatory subject (the government strictly supervises, the smart community self-regulation, and third-party organizations do not accept rent-seeking), i.e. (x = 0, y = 1, z = 1), this section attempts to analyze the role of the change in the probability of one party's behavior on the game behavior of other subjects.According to the conclusion of the study, to achieve the ideal state (1.1.1),the following conditions must be met at the same time: According to the above requirements, set the following parameter values: In the process of simulation and analysis of the evolutionary game, the value of the game behavior probability of individual subjects will be controlled, so as to verify the change and infuence of the game behavior change of other subjects on the subject behavior of the other party.
Health & Social Care in the Community 4.1.Numerical Simulation and Analysis of the Government Game Behavior.Assuming that the initial value of the government, the smart community, and the third party is x � 0.7, y � 0.4, z � 0.5, control the initial policy value of the government and change the strategic value of the smart community and the third party.Te results are shown in Figure 2.
In the process of evolution, government behavior with game time increases steadily to 1.As can be seen from the simulation results, the proportion of intelligent communities choosing self-discipline and third-party institutions choosing to reject rent-seeking is very small.Te government has oscillated between a heavy-handed and light-touch regulatory strategy.However, with the improvement of selfdiscipline of smart communities and rejection of rentseeking behavior by third-party organizations, the active supervision behavior of government departments is also improving.Finally, the government chooses active regulation as a stable strategy.

Numerical Simulation and Analysis of Smart Community
Mechanism Game Behavior.Similarly, assuming that the initial value of government, smart community, and thirdparty organization is x � 0.7, y � 0.4, z � 0.5, control the initial policy value of smart community, and change the strategy choice of government and third-party organization.Te results are shown in Figure 3.
As can be seen from Figure 3, the proportion of selfdiscipline management in smart community tends to 1 with the increase of game times.When the probability of the government strictly regulating the strategy is less than 0.5, the choice of smart community and third party strategy will go to 0. When the government probability is greater than 0.5, the choice of the two strategies gradually approaches 1. Tis situation shows that smart community strategy choices depend on government strategy.When the government chooses to strictly regulate, smart community gradually tends to self-discipline, and the choice of the third party gradually tends to reject rent-seeking strategy.

Numerical Simulation and Analysis of the Game Behavior
of the Tird-Party Evaluation Organizations.Similarly, the initial policy value of government, smart community, and third-party organizations is x � 0.7, y � 0.4, z � 0.5, and the results are shown in Figure 4.
Control the initial strategic value of third-party institutions and change the strategic proportional value of government and smart community.According to Figure 4, the behavior of third-party institutions is infuenced by the behavior of the other two subjects.While the proportion of positive behavior of other subjects continues to increase, the proportion of thirdparty institutions choosing not to rent-seeking is also approaching 1. Terefore, the strict supervision of the government and the self-disciplined operation of the smart community have an important impact on the probability of the third-party institutions choosing to refuse rent-seeking.

Discussion
Tis section puts forward the strategy of improving participants' behavior in smart community supervision, that is, resource allocation strategy.When regulatory behavior occurs, government departments should invest resources in third-party evaluation agencies screening and service purchase.Te government should punish rent-seeking behavior in smart communities.Increasing costs can be used to constrain the misconduct of smart communities and thirdparty evaluators.As the government's resources in the supervision process are limited, the reasonable allocation of supervision resources can efectively coordinate the game behavior of various subjects and enhance the efectiveness of the supervision of smart community.Supervision should be improved from the introduction of the subject, multi-interest measurement, clear behavioral pain points, and rationalization of incentive and punishment, so as to obtain the supervision efect of low-cost government supervision and self-regulation of smart community, and third-party institutions do not accept rent-seeking.

Strategies for Government Behavior Improvement.
First of all, the government civil afairs department's purchase of third-party evaluation services has consumed part of the cost, and then investing resources to mass repeat sampling smart community evaluation results is not economical.Terefore, the optimization strategy focuses on how to use government resources.On the basis of active supervision, third-party evaluation should maximize the efect and minimize the remaining costs.To achieve the above objectives, we should start from the third party and smart community game behavior, by perfecting the legal system, setting up self-discipline management reward, increasing the punishment of the smart community not selfdiscipline management, removing the cooperation of thirdparty rental evaluation agencies, improving the cost of smart community rent-seeking, making its exit from rent-seeking cooperation [19], at the same time strengthening the strict incentive of smart community self-discipline management, and awarding honorary titles to smart community.Secondly, in order to restrain the behavior of third-party professional evaluation institutions, civil afairs departments should raise their entry threshold, establish a trust-breaking system, and severely punish or even eliminate third-party institutions that have evaluated trust-breaking for many times, so as to increase the cost of third-party institutions to accept rentseeking and form a credible threat.Finally, to regulate the behavior of smart community, the civil afairs department can break the fuke psychology of wavering by increasing the punishment of non-self-discipline operation and giving selfdiscipline management rewards and avoid their rent-seeking behavior at low cost [20].From the government's own point of view, it should try to reduce costs after the purchase and evaluation, replace repeated supervision with penalty clauses, and use advance prevention instead of postinvestigation.

Behavior Improvement Strategies of Tird-Party Professional Evaluation
Agencies.Tird-party professional evaluation agencies, in the process of smart community regulation, should pay attention to its policy environment, accept the government entrusted third-party agencies, and should have a comprehensive grasp of local policy; in the face of possible smart community rent-seeking behavior, the third-party institutions should be positioned and clear their own interests.In the process of supervision, the third party institutions are in a state of repeated game.It should choose long-term government cooperation in the game process to seek long-term development [21].In addition, the thirdparty institutions should also make it clear that if they choose to accept rent-seeking, then the punishment and losses may be irreparable, and an act of dishonesty may not be exposed, but as long as exposed once, there will be completely lost opportunities [22].Based on the principle of rational choice and risk avoidance, third-party institutions should not choose to take risks but should always maintain good cooperation with government departments and assume social responsibility to improve the regulatory efect of the smart community.

Strategies for Institutional Behavior Improvement for
Smart Communities.For the rapid development of contemporary urban community, smart community, as the carrier of smart community service, should be clear about long-term pursuit and cost saving [23,24].Terefore, in the face of institutional evaluation, the smart community should not regard this as a task to meet the indicators but as a direction to motivate their own operation and development.Te supervision standard of the government civil afairs department is the national guidance on the operation of smart community.In comparison, it can play a positive role in correction, which is a kind of top-down communication [25].At the same time, smart community should also make clear the dissatisfaction and desire of smart community residents to demand, provide more efcient institutional services, and seek their own development with a bottom-up feedback mechanism [26].Terefore, in the regulatory game, if smart communities shift their focus to their own operations, they will naturally not pay additional rent-seeking costs to cope with supervision, nor will they bear the serious punishment that may result from evading supervision.

Conclusion
Tis study constructs the game model to clarify the role of each stakeholder in regulation.In addition, the paper analyzes the key factors afecting the game behavior of each subject and provides theoretical contributions for future research.Te results show the following.(i) Government behavior plays a leading role in supervision.(ii) When the government invests resources in the screening of third-party evaluation agencies and the purchase of services and mainly adopts policy punishment methods for stakeholders with rent-seeking behavior, the probability of regulatory participation stakeholders' positive behavior is the greatest.(iii) Te improvements should be made from the aspects of information network construction, the refnement of reward and punishment measures, and the improvement of the evaluation party access rules.
Te management implications of this study are as follows.When optimizing the supervision of smart community, the relationship of interest between the three parties should be comprehensively measured to form a joint force.Under the guidance of party building and the supervision resources of government departments, the role of rewards and punishments should be fully played, and the operation behavior of smart community should be restricted in time with government supervision at the grassroots level.Firstly, whether the third-party professional evaluation agency accepts rent-seeking is most afected by the amount of rentseeking, the government's prior intervention, and posttreatment [27].Secondly, whether smart communities are rent-seeking is the most infuenced by the guidance and punishment of the government.Finally, in the regulation, the government should try to reduce the regulatory costs.In view of the above conclusions, we should raise the threshold of cooperation, increase the intensity of rent-seeking treatment, guide the cost of investment supervision, severely punish to replace the repeated supervision after the evaluation of the third-party institutions, and strengthen the feedback supervision system, so as to achieve the purpose of curbing rent-seeking behavior, the government streamlining administration and delegation of power, and improving the efectiveness of supervision.
Te limitations and future research directions of this study are as follows.First, the selected literature is limited, the theory is not mature enough, and it is still in the preliminary stage of research.In fact, regulatory issues in the process of smart community sustainability are considered an important aspect of future urban governance.Relevant theories should be improved to enhance the applicability of the research.At the same time, only three participants were selected for this study.Smart community supervision is a gradual research process, and the results of this study are not comprehensive.In the future, digital green can be added to the research of the smart community regulatory game [28].

Data Availability
Te data presented in this study are available on request from the corresponding author.

Figure 1 :
Figure 1: Game behavior of smart community regulatory participants.
Analysis Based on Principal-Agent Teory and Supervision of Smart Community.Principal-agent theory was proposed in 1976 by American scholars Jensen and Meeking.

Table 1 :
Parameter symbols and signifcance.Te public gains made when the government actively regulates P x > R x R x Public welfare loss when the government supervises loosely C x1 Te cost of regulation paid for when the government actively regulates it (C x1 > C x2 ) C x2

Table 2 :
Income matrix of government, smart community, and third-party professional appraisal agencies.

Table 3 :
Balance point and the eigenvalues.