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M & D FORUM Research on the Relationship Between Financial Structure and Regional Economic Growth in Open Economy SUN Ke School of Business, Jiaxing University, P.R.China, 314001 [email protected] Abstract: The relationship between economic growth and financial system is always a hot topic. This paper does an empirical research on this spot in open economy and makes a comparison between eastern and western regions. The results show financial structure is important for Shanhai, Zhejiang and Shannxi, while its effect on Jiangsu is statistically insignificant. Bank-based financial system seems more important for economic growth of Shanghai and Shannxi, and market-based financial system is more important for Zhejiang. Keywords: Financial structure, Regional economic growth, Open economy 1 Introduction The relationship between economic growth and financial system is always a hot topic not only in the economic research area but also in the financial research area. Discussions focusing on the functions of financial sectors on economic growth have never end. Robinson (1952) and Lucas (1988) think that the influences of finance on economic growth are over emphasized. On the other hand, McKinnon (1973) stress the importance of analyzing the relationship between financial development and economic growth in seeking the source of economic development. The economists pay much attention to the relative importance of bank-based and market-based financial systems (Goldsmith,1969; Boot and Thakor, 1997; Kul et al, 2008). The debate on the relative merits of bank-based versus market-based financial systems has a long history of over a century (Levine, 2002; Allen et al, 2006). Nonetheless, there is hardly any consensus at the theoretical level. Competing theoretical models posit the superiority of one type of financial system over the other or they simply relegate financial structure as irrelevant. A large body of empirical literature has attempted to evaluate this debate (Arestis et al., 2001; Beck et al, 2004). With the development of Chinese economy, the financial structure is changing at the same time. Whether current financial system adapts to real economy is still an important question need to be answered. As far as we considered, different regions may have different performance, so we make a comparison in this paper to see the differences between eastern and western regions in China. 2 Model Specifications and Data Description 2.1 Model specification Here we extend traditional Cobb-Douglas production function, where financial structure and financial development account for TFP (total factor productivity). Our basic specification is shown in Eq. (1). 1 Y = F ( K , L, F S , F D , E ) = BK α Lβ ( F S ) λ ( F D ) δ e ε Where, Y is output, K is physical capital stock, L is labor, FS and FD respectively are measures of financial structure and financial development, B is TFP. A high value of FS means a system that is more of a market-based variety; while a lower FS means more of a bank-based system. eτ is the error term. α, β, λ and δ is capital output elastic coefficient, labor output elastic coefficient, financial structure’s contribution to economic growth and financial development’s contribution to economic growth, respectively. According to classical theory of economic growth, contributions of other factors are all represented by B. Express equation (1) in logarithmic form, we can get equation (2) which is our benchmark empirical model. 2 ln Y = ln B + α ln K + β ln L + λ ln( F S ) + δ ln( F D ) + ε () () 258 M & D FORUM By integrating international trade situation and FDI into equation (2), we can analyze the long run relationship between output, real capital stock, labor, financial structure and financial development in open economy. This way we can get equation (3). ln(Y ) t = a 0 + a1 ln( K ) t + a 2 ln( L ) t + a 3 ln( F S ) t + a 4 ln( F D ) t + a 5 ln( EXIM ) + a 6 ln( FDI ) + et 3 The standard econometric specification of growth model regresses real per capita GDP growth on a number of growth determinants. Our approach is time series. We estimate the relationship between output, labor, physical capital stock, financial development and financial structure in open economy. () 2.2 Data description Our sample consists of four regions in China, i.e. Shanghai, Jiangsu, Zhejiang and Shannxi. All data are obtained from the related statistical yearbook dataset. Nominal GDP and GFI variables are deflated by the GDP deflator. Measures of financial structures and financial development are computed following Beck and Levine (2002) and Levine (2002). Two measures of financial structure employed are: (i) Structure-Activity (SA), which is computed as the log of the ratio of Stock Market Total Value Traded to Private Credit, and (ii) Structure-Size (SZ), measured as the log of the ratio of Stock Market Capitalization to Private Credit. The Structure-Activity measures the activity of stock market relative to banks and other financial institutions. The Structure-Size measures the size of stock market relative to the rest of the financial sector (bank and non-bank institutions). The aggregate measure of financial structure (FS) is the weighted sum of all the principal components of the two variables SA and SZ, which captures their total variation. The two underlying measures of financial development are: (i) Finance-Size (FZ), computed as the log of the product of Private Credit Ratio and Stock Market Capitalization Ratio; and (ii) Finance-Activity (FA), which is the log of the product of Private Credit Ratio and Stock Market Value Traded Ratio. Finance-Size measures the overall size of stock market, banks and non-bank financial institutions whereas Finance-Activity measures their total activities. The aggregate measure of financial development (FD) is the weighted sum of all the principal components of FZ and FA. A consistent time series of total physical capital stock for the whole sample period is not available, so we construct it for each region from the respective real gross fixed investment series using the perpetual inventory method. Following Luintel and Khan (1999, 2004), a depreciation rate of 8% and the sample-average growth rate of real investment, are used to compute the initial capital stock. 3 Empirical Results 3.1 Descriptive Statistics Table 1 reports some descriptive statistics of our dataset. It is evident that our sample consists of regions with varying growth experiences. In our sample, Shannxi has the lowest real average GDP and Jiangsu has the highest. In terms of growth, all of the regions represent high level of growth. Zhejing is the fastest growing economy (13.259% average annual per capita real income growth) while Shannxi shows the lowest but not low average annual growth rates of 11.325% during the sample period. A striking feature, however, is that all provinces have evolved towards a more market-based financial system over the last years. The levels of Private Credit Ratio have gone up in all but Shannxi is not so significant. On average, the Private Credit Ratio is higher in the last five years compared with the first five years of the sample, especially in Zhejiang province where the Private Credit Ratio is 1.984 times higher. However, the rise in capitalization ratios and value-traded ratios are by far greater. They have shot up, respectively, by 1.485, 2.807, 3.231 and 1.851 folds during the same period. Stock Market Capitalization and Stock Market Value Traded both show positive average annual growth rates for all regions, although their magnitudes vary across the provinces. The last ratio of Table 1 shows that the financial systems of all regions grew towards a more market-oriented system; the average annual conversion rate is 19.239% for Shanghai (lowest) and 65.006% for Shannxi (highest). 259 M & D FORUM ( ) Table 1 Descriptive Statistics 1993-2007 YM YG(%) PCS PCE PCM PCG(%) SMS SME SMM SMG(%) 2721.22 12.293 1.588 1.846 1.703 1.425 1.020 1.515 1.310 19.888 SH SAS SAE SAM SAG(%) SZS SZE SZM SZG(%) 0.643 0.937 0.750 37.411 0.643 0.831 0.773 19.239 YM YG(%) PCS PCE PCM PCG(%) SMS SME SMM SMG(%) 6097.58 13.011 0.601 0.872 0.731 2.900 0.057 0.160 0.143 40.119 JS SAS SAE SAM SAG(%) SZS SZE SZM SZG(%) 0.146 0.319 0.243 59.547 0.090 0.184 0.189 36.483 YM YG(%) PCS PCE PCM PCG(%) SMS SME SMM SMG(%) 4248.16 13.259 0.632 1.254 0.930 5.217 0.052 0.168 0.148 40.717 ZJ SAS SAE SAM SAG(%) SZS SZE SZM SZG(%) 0.159 0.281 0.230 72.035 0.080 0.133 0.154 34.440 YM YG(%) PCS PCE PCM PCG(%) SMS SME SMM SMG(%) 1187.77 11.325 1.114 1.115 1.168 -0.823 0.067 0.124 0.143 63.401 SX SAS SAE SAM SAG(%) SZS SZE SZM SZG(%) 0.190 0.294 0.251 272.53 0.059 0.116 0.121 65.006 YA—average of GDP YG—average annual growth rate of GDP PC—private credit/GDP SM—stock market capitalization/GDP SA—stock market total value traded/private credit SZ—stock market capitalization /private credit Subscripts S、E、M、G are the average value of the first five years, the average value of the last five years, the mean value of the sample period and the average annual growth rate, respectively. SH = Shanghai; JS = Jiangsu; ZJ = Zhejiang; SX = Shannxi. ; ; ; ; ; ; 3.2 Empirical Results From table 2, we can see that in open economy financial structure is important for Shanghai, Zhejing and Shannxi, but has no statistically significant effect on Jiangsu. The coefficient of financial structure for both Shanghai and Shannxi is negative, which means that in open economy bank-based financial system seems more important for the economic growth of Shanghai and Shannxi. The coefficient for Zhejing is positive, which means that in open economy market-based financial system seems more important for the economic growth of Zhejiang. The coefficient of both FS and FD for Jiangsu is statistically insignificant, so we cannot tell the differences of FS and FD for Jiangsu. From the statistical results, we can also see that the coefficient a5 is significantly positive and a6 is significantly negative, which mean that in open economy the change of international trade volume has significantly positive influence on economic growth of Shanghai. In fact, in these years the ratio of EXIM and GDP has been as high as 170%. In comparison, FDI has significantly negative effect on GDP. For Jiangsu, the coefficient of FS and FD is statistically insignificant, while the coefficient of EXIM is statistically significant which means that the extraverted economy in Jiangsu play a great role in economic development. For Zhejing, the situation is different with Shanghai. The coefficient a5 is significantly negative and a6 is significantly positive, which mean that in open economy the change of international trade volume has significantly negative influence on economic growth of Zhejing and FDI has significantly positive effect on it. For Shannxi, both a5 and a6 are statistically significant which means that the effects of open economy on the economic growth of Shannxi have not represented. SH Coef. t Sta. Sig. F Sta. JS a0 18.249*** 16.630 .000 19843.873*** a0 Table 2 Results of Specification (3) a1 a2 a3 a4 .631*** 7.697*** -.062*** .064*** 43.034 15.393 -3.564 3.550 .000 .000 .007 .008 Sig. .000 Adj. R2 a1 a2 a3 a4 a5 260 a5 .018** 1.095 .035 D-W a6 a6 -.026** -2.874 .021 2.604 dum M & D FORUM Coef. t Sta. Sig. F Sta. ZJ Coef. t Sta. Sig. F Sta. SX Coef. t Sta. Sig. F Sta. -.579 .694*** .648 .017 -.010 .078** .003 -.137 15.096 1.184 .738 -.398 3.239 .202 .895 .000 .275 .484 .702 .014 .846 8008.407*** Sig. .000 Adj. R2 .99975 D-W 1.973 a0 a1 a2 a3 a4 a5 a6 dum1 1.287 .819*** .289** .079*** -.067*** -.059** .047** -.069*** 1.457 26.290 2.685 7.509 -5.693 -2.523 2.902 -4.372 .196 .000 .036 .000 .001 .045 .027 .005 18188.686*** Sig. .000 Adj. R2 .9999 D-W 2.532 a0 a1 a2 a3 a4 a5 -1.978 .964*** .335 -.192** .211*** -.035 -.345 9.920 .359 -2.956 3.526 -.305 .739 .000 .729 .018 .008 .768 524.548*** Sig. .000 Adj. R2 .996 D-W -.027** -2.990 .020 dum2 -.053*** -3.941 .008 a6 -.013 -.254 .806 1.585 4 Conclusion The relationship between economic growth and financial system is always a hot topic. This paper studies this spot in open economy and makes a comparison between eastern and western regions. The results show that financial structure is important for Shanhai, Zhejiang and Shannxi, while its effect on Jiangsu is not statistically significant. For the statistically significant coefficients, the coefficient for both Shanghai and Shannxi is negative, so bank-based financial system seems more important for economic growth in these two provinces, and the coefficient for Zhejiang is positive, so market-based financial system is more important. The coefficient of both FS and FD for Jiangsu is statistically insignificant which seems in accordance with the financial service view and needs further deep research. : Acknowledgment This work is supported by Zhejiang Social Sciences Fund (10CGYD85YBX) References [1]. Allen F., Bartiloro L., et al. Does economic structure determine financial structure? Working Paper, The Wharton School, University of Pennsylvania, 2006. [2]. Arestis P., Demetriades P., et al,. Financial development and economic growth: the role of stock markets. Journal of Money, Credit and Banking, 2001, 33 (1), 16-41. [3]. Beck T., Levine R. Stock markets, banks and growth: panel evidence. Journal of Banking and Finance, 2004(28): 423-442. [4]. Kul B. Luintel, Mosahid Khan, et al. Financial structure and economic growth. Journal of Development Economics, 2008 (86): 181-200. [5]. Lucas R.E. On mechanics of economic development. Journal of Monetary Economics, 1988, 22: 3-42. 261