Spatial Spillover Transmission Effects of Financial Development on Economic-Zone Financial Efficiency in China

+is article attempts to fill important knowledge gaps to explore the spatial spillover effects of financial markets on regional financial efficiency in eight economic zones using three-stage superefficiency data envelopment analysis (DEA) and Durbin’s spatial econometric model. +e average financial efficiencies in the North coast, East coast, and South coast economic zones reach the superefficiency DEA relatively efficient level, while the average financial efficiencies in the Northeast, Middle Yellow River, Middle Yangtze River, and large West-south and West-north economic zones reach the superefficiency DEA relatively inefficient level. Except for the North coast economic zone, seven equity markets have significant impacts on regional financial efficiency, and local equity markets in the Northeast, South coast, Middle Yellow River, and Middle Yangtze River economic zones generate significant spatial spillover effects on neighboring regions’ financial efficiency. Local credit markets only in the Northeast and South coast economic zones have significant spatial spillover influences on neighboring regions’ financial efficiency. Debt markets in the North coast, East coast, South coast, Middle Yangtze River, and large West-south economic zones have significant influences on regional financial efficiency, and local debt markets in the East coast and Middle Yangtze River economic zones generate significant spatial spillover effects on neighboring regions’ financial efficiency.


Introduction
Understanding the financial market development and regional allocation efficiency of financial resources in China is a topic of increasing interest among policymakers and academic scholars. China is an emerging country with a government-led market economy.
e financial system is reflected in the government's efforts to promote economic growth and exploit the utility of resource allocation. In China, different local governments exhibit significant divergence in financial resource competition and financial market development. Such divergence influences financial resource allocation efficiency and spatial spillover effects among different regions. e main purpose of this article is to explore whether different regions obtain sufficient or even surplus financial resources to promote spatial spillover effects of regional financial efficiency among Chinese economic zones.
Appropriate financial development can boost regional economic growth and poverty reduction [1][2][3]. Investigating the financial market interconnection is crucial for understanding financial efficiency and economic growth [4]. Regional financial development and networks are drivers of regional financial efficiency and economic development [5][6][7][8]. Bank financing plays a significant role in severe information asymmetry and discriminatory legal and regulatory practices [9,10]. Local decentralization produces a significant spatial effect on local financial efficiency [11]. Financial developments in both credit and equity markets have greater effects on reducing financial constraints in China [12]. e transition of international financial reporting standards and regional financial freedom can improve the bank's efficiency in European Unions and Asia [13,14]. e performance of bank loans has an important effect on regional economic and credit risk efficiencies [15].
Regional financial efficiency reflects how financial institutions collect financial resources, allocate them to sectors with resource shortages, and use those resources more effectively and efficiently [16]. Cooperation among different regional financial structures can improve the overall efficiency of the financial system among economic zones [17]. Geographic proximity, intraregional financial integration, regional economic integration, and diversification benefits may have certain impacts on regional financial market integration [18,19]. Regional financial market integration increases the information spillover network, while market interconnectedness declines when a financial crisis hits [19][20][21][22][23]. Intraprovincial financial disparity is positively correlated with intraprovincial economic disparity [24]. e perceived credit risks of European sovereigns exhibit high, time-varying spatial spillover effects during sovereign debt crises [25]. e spatial spillover effects of the financial network are positively correlated with important financial markets, foreign direct investment, and the inflation rate [26][27][28][29]. Eastern and western regions in China have negative spatial spillover effects of financial inclusion on the central region [30]. Financial agglomeration causes an increasing concentration of financial resources in economic zones and generates certain spatial spillover effects of internal financing efficiency on adjacent regions. e agglomeration of financial resources may influence regional financial development and promote economic growth [31,32]. Financial market development promotes economic growth in developed and developing countries [33][34][35]. e regional financial efficiency among the six major regions of China exhibits a gradient difference [36]. Traditional financial development institutions exhibit greater market competition among different regions [37]. Local economic development spillover effects are an important dimension to evaluate the effects of special economic zones [38]. Different economic zones that exhibit greater divergence in the economic development level, financial market development and financial resource allocation, interregional spatial dependence, and spillover effects are important forces for promoting regional financial efficiency. e main objective of this article is to explore the spatial dependence and spillover effects of equity market, credit market, and debt market development on regional financial efficiency in eight economic zones. To the best of our knowledge, we address the gap in prior research by investigating the spatial spillover effects of the financial market on regional financial efficiency in eight economic zones.
is article contributes three novelties to the existing literature. First, this article investigates the spatial layout patterns of regional financial efficiency in eight economic zones using a three-stage superefficiency (SE) data envelopment analysis (DEA) model. Second, this article reveals greater divergence in the significant effects of equity, credit, and debt markets on regional financial efficiency in eight economic zones. ird, this article expands extant knowledge on the spatial dependence of the regional financial efficiency and spatial spillover effects of three financial markets on regional financial efficiency in different economic zones. e remainder of this article is organized as follows: Section 2 describes the three-stage SE-DEA model and a spatial econometric model. Section 3 discusses the variable selection and the data sources. Section 4 reports the statistics for regional financial efficiency in eight economic zones. Section 5 reports the spatial spillover effects of financial markets on regional financial efficiency in eight economic zones. Section 6 concludes this article.

Econometric Methodology
DEA is an extensively used nonparametric linear programming approach for measuring the relative efficiency of a set of decision-making units (DMU) with multiple inputs and multiple outputs [39]. DEA model does not require enacting specific production functions and inefficiency term in advance and is barely influenced by subjective influences. e traditional DEA-CCR model created by Charnes et al. [40] is to originally evaluate the relative efficiency of DMUs with multiple inputs and outputs that assume the constant returns to scale, and the DEA-BCC model created by Banker et al. [41] is to estimate the corrected efficiency of DMUs that measures pure technical efficiency and scale efficiency with the variable returns to scale (VRS). e weakness of DEA-CCR or DEA-BCC models is that they cannot remove the influences of environmental factors and random errors on the DMUs efficiency [42,43]. e three-stage superefficiency DEA model proposed by Fried et al. [44] is an extension of the DEA model. Its main advantage is accurate measurement of the operational efficiency of each decision-making unit after purging exogenous environmental impacts and statistical noise because each DMU requires the consistency of external environmental and the sensitivity of external environment and random disturbance to measure the actual regional financial efficiency.
In the first stage, the initial multiple inputs and outputs measure the efficiency level of each DMU-separated frontier for each year using the DEA model. is estimation does not consider the effects of the exogenous environment and statistical noise factors for each year. In the second stage, the multiple inputs of each DMU are corrected for variations from environmental impacts, management inefficiency, and statistical noise using the stochastic frontier analysis approach. In the third stage, the initial multiple inputs are corrected in the second stage, and the original multiple outputs measure the final SE after adjustment for purging environmental effects and statistical noise.
Andersen and Peterson proposed the SE-DEA method [45]. Assume that we have a set of n(j � 1, 2, . . . , n) DMUs, which produce multiple outputs by utilizing multiple inputs, and each DMU has a set of m input measures and s output measures, which separate frontier for each year; x io (i � 1, 2, . . . , m) are the i th input factors, y ro (r � 1, 2, . . . , s) are the r th output factors under the condition of VRS, and the input-oriented SE for efficient DMU k can be expressed as [11,[46][47][48] where λ j ≥ 0, the input (x ij ) and output (y rj ) factors are positive (i.e., x ij ≥ 0, y rj ≥ 0), and θ VRS−super o ≥ 0 is the efficiency evaluation of DMUs. SE-DEA exhibits an increase or decrease in the proportions of a DMU's input when the efficiency value remains invariant. e SE evaluation is the same as evaluations using the traditional DEA model if the production frontier of DMUs does not achieve DEA efficiency. e SE evaluation is more than an efficiency evaluation using the traditional DEA model if the production frontier of DMUs achieves DEA efficiency. Model (1) measures the superefficiency estimations of each cross-section DMUs in the period for 2004-2016.
However, the efficiency of the first-stage DEA model is influenced by management inefficiency, exogenous environmental effects, and statistical noise. In the second stage, we present the stochastic frontier analysis approach to identify the three effects and measure the input slacks induced by management inefficiency after purging environmental effects and statistical noise. Assuming that k(k � 1, 2, . . . , p) are the observable environment variables, which are pooled frontier for 2004-2016, the stochastic frontier analysis is described as follows: where i � 1, 2, . . . , m, k � 1, 2, . . . , p, s ik refers to the input slacks, z ik � z ik , z 2k , . . . , z pk refers to the impacts of observable environmental factors, δ i is the estimated parameter of environmental factors, and f n (z ik , δ i ) evaluates the feasible frontier slacks, reflecting the effects of environmental factors on the input slacks. ] ik represents stochastic errors, indicating the influence of random interference factors on the input slack variable; μ ik is management inefficiency, showing the impact of management inefficiency on input slack variables; ] ik + μ ik represents mixed errors, and ] ik ∈ N(0, σ 2 vi ), μ ik ∈ N(μ i , σ 2 in ). In order to distinguish the impact of management inefficiency on the true financial efficiency value, we assume that all decision-making units have the same random error in the same exogenous environment. en, each input slack variable is adjusted according to the SFA regression results. When correcting for the input slacks, the estimated parameters based on equation (2) measure the corrected input variables using Jondrow's evaluation technique [49]: where i � 1, 2, . . . , m, k � 1, 2, . . . , n, x ik refers to the actual input variables, x C ik refers to the corrected input variable, max(z k δ i ) − z k δ i indicates that all the DMUs correct the same environmental effects, max(] ik ) − ] ik indicates that all the cross-section DMUs correct the same stochastic errors in the period for 2004-2016 using model 2, and all the DMUs contain the same environmental effects and statistical noise. e corrected input variables obtained in the second stage constitute the initial input variables in equation (1). We obtain the final efficiency evaluation of each cross-section DMU after purging the environmental effects and random noise, which separate the frontier for each year.

Spatial Econometric Model.
is section investigates the spatial spillover transmission effects of the equity market, credit market, and debt market on the economic-zone financial efficiency of Chinese financial markets based on the economic zone in Table 1. Here, the financial efficiencies among 30 provinces are the corrected SE financial efficiencies evaluated by the three-stage DEA model. is section presents Moran's I indices to measure the spatial autocorrelations of the SE financial efficiency in China's 30 provinces covering the period from 2004 to 2016. Moran's I indices are defined as follows [42,50,51]: where n(1, 2, . . . , 30) refer to thirty provinces in China, w ij refers to the spatial weight matrix between province i and province j, and x, x refer to the SE financial efficiency of the province and the average SE financial efficiency among the thirty provinces, respectively. If the regional SE financial efficiency shows a positive spatial correlation, then the value of Moran's I indices ranges from 0 to 1. Larger Moran's I indices reflect stronger spatial positive correlations, implying that regions with similar observable values are collectively allocated in the spatial ranges. By contrast, regions with similar observable values undergo discriminated allocation in the geographical space. To measure the spatial autocorrelation of regional SE financial efficiency in various provinces, we present the economic distance weight matrix, which is defined as the reciprocal of the absolute difference of the gross domestic product (GDP) per capita between two provinces. is article introduces spatial weight matrix w * � w × e, here matrix e is the main diagonal and the elements are all 0. However, for nonmain diagonal e SLM supposes that spatial autocorrelation stems from explained variables and measures the influences of financial efficiency in neighboring regions on local financial efficiency [11]. e main defects of the spatial error model and spatial lag model are that the exogenous interaction effects and relative error terms do not explain the spatial distribution pattern, while the endogenous interaction effects and relative error term explain the spatial distribution pattern. e spatial Dubin model has three benefits: first, financial resources in different regions have significant spatial distribution characteristics; second, various affecting factors exhibit dynamic characteristics, and then present the spatial econometric model to measure various influencing factors; and third, the results using the spatial econometric model have good robustness [52,53]. To overcome these defects, we present the SDM to measure the spatial spillover effects of fiscal decentralization and financial market development on regional SE financial efficiency among eight economic zones. e spatial spillover effects of regional SE financial efficiency are influenced not only by equity market, debt market, and credit market development but also by foreign direct investment, local economic development, financial marketization, and foreign trade policy, among others. e SDM is defined as follows: where FE it refers to the regional SE financial efficiency; w ij refers to the spatial weight between provinces i and j; n j�1 w ij FE i(t−1) refers to the spatial lag term of regional financial efficiency; X it denotes the equity market, debt market, and credit market variables; n j�1 w ij X j(t−1) denotes the spatial lagged term of the explanatory variables; Y it are the other economic control variables, and the regional SE financial efficiency, equity, debt, and credit markets and other economic variables are all panel data with cross section and 2004-2016 year; c 0 is a constant term; a is a spatial correlation coefficient reflecting the interactions of regional SE financial efficiency among different regions; b is the coefficient of the explanatory variable reflecting regional SE financial efficiency; c is the spatial correlation coefficient of the explanatory variable; d is the coefficient of other economic variables, which reflects the impact of other economic variables on regional financial efficiency; and μ i , λ t , ξ it are the regional fixed effect, time fixed effect, and residual error term, respectively.

Variable Selection and Data Sources
As shown in Table 1, we divide the 30 provinces in mainland China into eight economic zones, which are based on the regional division of economic statistics by the National Development and Reform Commission of China, economic-zone reports by the Development Research Center of the State Council of China, and the regional input-output balance sheet from 2007 provided by the State Information Center and National Bureau of Statistics of China.
is article measures provincial and regional SE financial efficiency using multiple inputs, multiple outputs, and environmental factor effects. is article selects the ratio of the conversion of savings to investment [16], the ratio of the equity market value to the GDP, the number of registered employees in financial institutions [16], and financial marketization as multiple input indicators. Added value in the financial industry, financial resources per capita, and the GDP per capita are multiple output indicators, and GDP growth, fiscal expenditure, foreign direct investment, and the openness of a region to foreign and private firms are environmental factors. e estimated details for all the variables are given in Table 2. e above data are sourced from China Economic and Social Big Data Research Platform (https://data.cnki.net/) and Wind database (https:// www.wind.com.cn/NewSite/edb.html).
To measure the spatial spillover effects of different financial market development on SE financial efficiencies in the eight economic zones, this article chooses the regional SE financial efficiency estimated by the three-stage DEA model as the explained variable and the ratio of the provincial fiscal expenditure in China's 30 provinces [54], credit financing, equity financing, and debt financing as the credit market, equity market, and debt market, respectively, which are explanatory variables. Moreover, regional foreign direct investment, regional financial marketization degree, regional GDP per capita, and regional foreign trade level are controlling variables. e definitions of the main variables in equation (5) are shown in Table 3.
All the data are obtained from the Wind database (https://www.wind.com.cn/NewSite/edb.html), Tong-huashun (Ifind) database (https://db.10jqka.com.cn/), China Stock Market & Accounting Research (CSMAR) database (https://www.gtarsc.com/), and China Economic and Social Big Data Research Platform (https://data.cnki.net/). e regional total capital forming value, the total saving value in urban and rural regions, the GDP, financial marketization scores, added value in the financial industry, foreign direct investment, the total foreign trade value, the registered employee number in private firms, and the registered employee number in China are sourced from the Wind database. e total market values of regional equity financing are sourced from the Tong-hua-shun database, and the registered employee number in financial institutions, premium revenue, and the deposit balance in financial institutions are sourced from the CSMAR database. All the provincial data covered the period from 2004 to 2016.

Statistical Descriptions of Regional
Financial Efficiency is section first analyzes regional differences in SE financial efficiencies in China's 30 provinces and eight economic zones using the one-stage and three-stage DEA models. Table 4 shows the statistical analysis of the regional financial efficiencies in the eight economic zones. Covering the period from 2004 to 2016, the mean SE financial efficiencies in Beijing, Tianjin, Jiangsu, Shanghai, Zhejiang, Guangdong, Inner Mongolia, and Qinghai provinces are larger than 1, achieving the SE-DEA relatively effective level. However, the mean SE financial efficiencies in the other 22 provinces were less than 1 using the one-stage DEA model, which did not achieve the SE-DEA relatively effective level. Among the eight economic zones, the average one-stage SE financial efficiencies in the North coast, East coast, and South coast economic zones are greater than 1, the average one-stage SE financial efficiencies in the other five economic zones are less than 1, and the national average of the one-stage SE financial efficiencies in China's 30 provinces is equal to 0.905, thus failing to reach the SE-DEA relatively effective level. In the one-stage DEA model, the SE financial efficiencies comprise the effects of management inefficiency, exogenous environmental effects, and statistical noise. In the second stage, stochastic frontier analysis can surge exogenous environmental effects and random statistical noise and accurately measure the SE financial efficiencies induced by operation efficiencies in China's 30 provinces. Here, we select the GDP growth rate, fiscal expenditure, the ratio of the foreign direct investment to the GDP, the ratio of the foreign trade level to the GDP, and the ratio of the registered employees in private firms to national firms as exogenous environmental factors. e empirical results of the stochastic frontier analysis indicate that most of the environmental factors have a significant impact on registered employees in financial institutions, the total market value of equity financing, and financial marketization scores in the China's 30 provinces, and the statistical results of the sigma-squared test are significant at the 1% significance level, confirming that exogenous environmental factors have significant influences on the input slacks of registered employees in financial Discrete Dynamics in Nature and Society  Equity market Natural logarithm of the total market value of provincial equity

DM it
Debt market Natural logarithm of the sum of corporate bonds, local government bonds, shortterm financing bills, and medium-term notes Controlling variables GDP it Regional economic growth Regional year-end GDP/total provincial people FDI it Regional foreign direct investment Natural logarithm of regional foreign direct investment FM it Financial marketization Regional financial marketization sourced from the Wind database FT it Regional foreign openness level Natural logarithm of the regional total foreign value 6 Discrete Dynamics in Nature and Society institutions, equity financing, and financial marketization in China's 30 provinces. In the three-stage DEA model, we first used multiple input slacks based on equation (3) and estimated coefficients in the stochastic frontier analysis model. en, the multiple input measures were corrected to finally obtain the three-stage SE financial efficiency evaluation using equation (1). Figure 1 shows the spatial distribution of the mean provincial three-stage SE financial efficiencies in the period from 2004 to 2016 according to rankings as high-, medium-, and low-efficiency regions. at is, the provinces are defined as high-efficiency (financial efficiency > 0.938), medium-efficiency (financial efficiency � 0.652-0.938), and low-efficiency (financial efficiency � 0-0.652) regions. Compared with the mean SE financial efficiencies using the one-stage DEA model, the mean SE financial efficiencies increased in the Heilongjiang, Liaoning, Hebei, Shandong, Tianjin, Shanghai, Zhejiang, Guangdong, Hainan, Henan, Inner Mongolia, Shaanxi, Guangxi, Guizhou, Yunnan, Chongqing, Gansu, Ningxia, Qinghai, and Xinjiang provinces using the three-stage SE-DEA model. In contrast, the mean SE financial efficiencies in the 10 surplus provinces increased in the period from 2004 to 2016. e national average level of the three-stage SE financial efficiencies in China's 30 provinces is 0.886, which does not correspond to the SE-DEA relatively efficient level. e average three-stage SE financial efficiencies in the East coast, North coast, and South coast economic zones are 1.524, 1.312, and 1.009, respectively, reaching the SE-DEA relatively efficient level, while the average three-stage SE financial efficiencies of the Large West-north, Northeast, Middle Yellow River, Large West-south, and Middle Yangtze River economic zones are 0.838, 0.784, 0.768, 0.570, and 0.529, respectively, which do not correspond to the SE-DEA relatively efficient level. Figure 2 shows that the three-stage SE financial efficiencies in the eight economic zones exhibit significant time-varying trends: the North coast and East coast economic zones exhibit the highest three-stage SE financial efficiencies, and the Big West-South and Middle Yellow River economic zones exhibit the lowest three-stage SE financial efficiencies in the period from 2004 to 2016.

Spatial Autocorrelation and the Lagrangian Multiplier (LM) Test.
is section explains the spatial autocorrelation of the regional financial efficiencies in China's 30 provinces using Moran's I indices. Table 5 shows the changes in Moran's I indices of the regional financial efficiencies in the period from 2004 to 2016. e empirical results of Moran's I indices confirm that regional financial efficiency in China exhibit a positive spatial autocorrelation in the past 12 years at the 1% confidence level, and the spatial autocorrelation coefficients show greater ranges from 0.292 to 0.508, demonstrating that the regional financial efficiencies exhibit significant correlations with the spatial distribution in China's 30 provinces influenced by the level of regional financial efficiency with similar spatial characteristics and clustering effects in the geographical space. In the period from 2004 to 2016, Moran's I indices of the regional financial efficiencies show a significant increase, ranging from 0.330 to 0.508, and then a significant decrease, ranging from 0.508 to 0.292. ese results demonstrate that the spatial autocorrelation of the regional financial efficiencies first increases and then decreases in China's 30 provinces, implying that the influences of the regional financial efficiency in adjacent regions first increase in the period from 2004 to 2010 and then decrease in the period from 2011 to 2016. Figure 3 shows spatially scatter plots of the three-stage SE financial efficiencies in China's 30 provinces in 2004, 2010, and 2016: the horizontal axis represents the three-stage SE financial efficiency, and the vertical axis represents the spatial lag value of SE financial efficiency. Most of the provinces are located in the positive spatial correlation areas in the first and third quadrants, further indicating that the regional SE financial efficiencies exhibit significantly positive spatial spillover effects in the period from 2004 to 2016. e empirical evidence demonstrates that the regional SE financial efficiencies exhibit significant spatial autocorrelations in China's 30 provinces. us, we investigated the effects of fiscal decentralization and financial market development on regional financial efficiency considering the spatial spillover factor. Before establishing the spatial econometric model, we compared two competitive models-the SLM and SEM-using the LM test. We selected the more desirable SLM or SEM with higher significance. If the LM statistics of both the SLM and SEM are significant, then the saliency of robust LM statistics is required to select the SLM or SEM. Table 6 shows the empirical results of the LM test for the financial market variable. For the spatial spillover effects of the financial market variable, the LM test of the SLM is more significant than that of the SEM, and we selected the SLM to investigate the spatial spillover effects of the financial market on the regional SE financial efficiencies in the eight economic zones.

Spatial Spillover Effects of the Financial Market on Regional Financial
Efficiency. Good or bad market information has an important effect on the efficiency level of financial markets [55,56]. Table 7 shows the spatial spillover effects of financial market development on regional financial efficiency in the period considered. From the spatial dimensions, regional financial efficiencies in the Northeast, North coast, Middle Yangtze River, Large West-north, and Large West-south economic zones exhibit negative spatial autocorrelations at the 5% confidence level, confirming that the local financial efficiency shows a negative spatial-dependent correlation with the neighboring region's financial efficiency in the above five economic zones, and their spatial-dependent correlations exhibit significant scatter features.
Credit, bond, and equity markets exhibit different information efficiency [57]. Equity market development is positively related to regional SE financial efficiency in the East coast and South coast economic zones; negatively related to regional SE financial efficiency in the Northeast, Middle Yellow River, Middle Yangtze River, Large Westsouth, and Large West-north economic zones; and Discrete Dynamics in Nature and Society nonsignificantly related to regional financial efficiency in the North coast economic zone at the 1% confidence level. e levels of equity market development in different economic zones exhibit greater divergence: higher levels of equity market development in the East coast and South coast economic zones can promote regional financial efficiency    Discrete Dynamics in Nature and Society improvement, while lower levels of equity market development in the Northeast, Middle Yellow River, Middle Yangtze River, Large West-south, and Large West-north economic zones may prevent regional financial efficiency improvement. In the South coast economic zone, local equity market development can generate positive spatial spillover effects on neighboring regions' financial efficiency: the higher clustering effect of the local equity market can drive neighboring regions to develop their equity market from the spatial dimension in the South coast economic zone. In the North coast, East coast, Large West-south, and Large West-north economic zones, local equity market development can generate nonsignificant spatial spillover effects on neighboring regions' financial efficiency. However, rapid local equity market development shows negative spatial spillover effects on neighboring regions' financial efficiency in the Northeast, Middle Yellow River, and Middle Yangtze River economic zones; equity market resources exhibit higher competition between local regions and neighboring regions; and certain market competitions of the equity market in these economic zones may crowd out spatial spillover effects of financial efficiency from developed regions to developing regions. Regional location and financial crises are crucial determinants of credit market efficiency [58]. Credit market developments in the Northeast and South coast economic zones are positively related to regional financial efficiency at the 1% confidence level, while credit market developments have nonsignificant impacts on regional financial efficiency in the other six economic zones. Moreover, quick local credit  10 Discrete Dynamics in Nature and Society market developments in the Northeast and South coast economic zones can generate positive spatial spillover effects on neighboring regions' financial efficiency at the 1% confidence level. Credit resource allocation is controlled by the local government, whose incentives can result in more credit resources being allocated to economic activities, thus enhancing regional financial efficiency. In the other six economic zones, credit markets show a nonsignificant spatial correlation with regional financial efficiency, local governments in the economic zones exhibit abundant credit resources, and incentive equity and bond instruments are substituted for credit resources, especially with the rapid growth of emerging instruments in developed regions and interregional financial activity lacking spatial dependence. Different economic zones have greater divergence in debt market development. In the North coast, East coast, and Middle Yangtze River economic zones, debt market development is positively related to regional financial efficiency at the 5% confidence level. e debt market developments in the South coast and Large West-south economic zones are negatively related to regional financing efficiency at the 5% confidence level, and debt market developments in the Northeast, Middle Yellow River, and Large West-north economic zones have a nonsignificant impact on regional financial efficiency. Fiscal decentralization, land fiscal policy, and loose economic policy will influence the rapid development of local government debts to promote regional economic activities. Larger-scale government debts may threaten fiscal sustainability, financial efficiency, and longrun economic growth [59][60][61][62]. In the East coast and Middle Yangtze River economic zones, rapid debt developments of local government exhibit positive spatial dependence with neighboring regions' financial efficiency at the 5% confidence level, while local debt market developments in the six economic zones show nonsignificant spatial dependence with neighboring regions' financial efficiency.
Furthermore, the different economic development levels, foreign direct investments, financial marketization degrees, and foreign open policies have different impacts on regional financial efficiency in the eight economic zones. e level of economic growth in seven economic zones shows a significantly positive impact on regional financial efficiency except for the East coast economic zone, implying that greater economic growth can promote regional financial efficiency. Foreign direct investments in the Middle Yellow River economic zone have positive impacts on regional financial efficiency at the 5% confidence level, while foreign direct investments in the other seven economic zones show nonsignificant impacts on regional financial efficiency, demonstrating that foreign direct investments in most of the economic zones generate nonsignificant impacts on regional financial efficiency. Financial marketization degrees in the Northeast, North coast and Big West-North economic zones have negative impacts on regional financial efficiency at the 5% confidence level except for the other five economic zones. e foreign open policy in the Middle Yangtze River   Discrete Dynamics in Nature and Society economic zone is positively related to regional financial efficiency at the 1% confidence level, while the foreign open policies in the Northeast, North coast, and East coast economic zones are negatively related to regional financial efficiency at the 5% confidence level, confirming that different foreign open policies in the eight economic zones generate different impacts on regional financial efficiency.

Conclusions
Identifying the spatial dependence between financial market development and financial efficiency in the eight economic zones is crucial for policymakers to effectively formulate and implement regional financial efficiency improvements. is article explores the spatial distribution patterns and spatial spillover effects of the financial market on regional financial efficiency using exploratory spatial data analysis from a new economic geography perspective. e empirical results demonstrate that environmental factors, such as registered employees in financial institutions, the equity market, and financial marketization degrees, have significant impacts on regional financial efficiency. e spatial distribution patterns of the three-stage SE financial efficiency show that the average financial efficiencies in the Beijing, Tianjin, Shanghai, Jiangsu, Zhejiang, Guangdong, Inner Mongolia, and Qinghai provinces are larger than 1 in the period considered, while the average financial efficiencies in the other provinces are less than 1 and do not reach the SE-DEA relatively effective level. e national average level of three-stage financial efficiency in China's 30 provinces is 0.886, and the average financial efficiencies in the East coast, North coast, and South coast economic zones are 1.524, 1.312, and 1.009, respectively, reaching the SE-DEA relatively efficient level. e average financial efficiencies in the Large West-north, Northeast, Middle Yellow River, Large West-south, and Middle Yangtze River economic zones are 0.838, 0.784, 0.768, 0.570, and 0.529, respectively, reaching the SE-DEA relatively inefficient level.
Moran's I indices confirm that regional financial efficiency in China shows positive spatial clustering dependence at the 1% confidence level, and Moran's I indices of regional financial efficiency in adjacent regions have larger ranges from 0.292 to 0.508, first increasing in the period from 2004 to 2010 and then decreasing in the period from 2011 to 2016. e empirical results confirm that regional financial efficiency in the Northeast, North coast, Middle Yellow River, Middle Yangtze River, Large West-south, and West-north economic zones exhibits negative spatial spillover effects at the 5% confidence level. Equity markets in the East coast and South coast economic zones exhibit significantly positive influences on regional financial efficiency, and equity markets in the Northeast, Middle Yellow River, Middle Yangtze River, Large West-south, and Large West-north economic zones exhibit significantly negative influences on regional financial efficiency. Credit markets in the Northeast and South coast economic zones exhibit significant positive impacts on regional financial efficiency; debt markets in the North coast, East coast, and Middle Yangtze River economic zones exhibit significant positive impacts on regional financial efficiency; and debt markets in South coast and Large West-south economic zones exhibit significant negative impacts on regional financial efficiency. Local equity markets in the Northeast, Middle Yellow River, and Middle Yangtze River economic zones show negative spatial spillover effects on neighboring regions' financial efficiency, while the local equity market in the South coast economic zone shows positive spatial spillover effects on neighboring regions' financial efficiency at the 5% confidence level. Local credit markets in the Northeast and South coast economic zones exhibit positive spatial spillover effects on neighboring regions' financial efficiency, and local debt markets in the East coast and Middle Yangtze River economic zones exhibit positive spatial spillover on neighboring regions' financial efficiency at the 5% confidence level. Furthermore, the economic development level, foreign direct investment, financial marketization degree, and foreign open policy have different impacts on the regional financial efficiency in the eight economic zones.

Data Availability
e data used to support the findings of this study are available from the authors upon request.

Ethical Approval
is article does not contain any studies with human participants or animals performed by any of the authors. Disclosure e authors would like to declare that this paper is original unpublished work, and has not been submited to any other journals.

Conflicts of Interest
e authors declare no conflicts of interest.