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EASTERN ACADEMIC FORUM The Countermeasure Research of Suqian Industrial Structure Adjustment and Economic Development QIN Yitian School of Economics and Management, Beijing Jiaotong University, China, 100044 [email protected] Abstract: Industrial structure adjustment is an important subject of economic development all over the world, and to establish a reasonable industrial structure. Suqian as a less developed city in Jiangsu province, its industrial structure and industrial structure inside still need to be adjust. In this paper, we use Granger causality test proves that the correlation of three times industrial structure and economic development in Suqian. Finally, Suqian industrial restructuring put forward some suggestions and countermeasures. Keywords: Regional industrial structure, Industrial structure adjustment, Economic development 1 Introduction 1.1 Background and significance Suqian, located in the northern part of Jiangsu Province. As a city with smallest economic aggregate in Jiangsu, China. Suqian has seized the opportunity with rapid economic development in sixteen years since its establishment. Industrial structure and economic growth has been the focus of economists’ study at home and abroad. Economic growth refers to the increasing total amount of goods and services or income growth of a country or region within certain time. The economic aggregate of Suqian has been less with irrational industrial structure in sixteen years. Therefore, the industrial structure adjustment has great significance on economic development and industrial restructuring countermeasures of Suqian. 1.2 Research methods (l) Combined method of theory and demonstration was used in the work. Theory played an important role in guiding empirical analysis. Industrial Structure Theory was the main theory of the work. (2) Qualitative research method, as a traditional approach of regional economics, was the premise of quantitative methods. Qualitative methods, including description and observation, were firstly used in any kinds of social phenomenon and economic phenomenon, followed by quantitative mathematical analysis methods. So do the methods in the work. (3) Finally, recommendations were proposed for industrial structure adjustment of Suqian at this stage, including suggestions on three-industrial internal structure adjustment. 2 Current Situation of Suqian’s Industrial Structure Up to 2012, the gross regional product of Suqian had reached 150.67 billion RMB; public budget revenue was 15.81 billion RMB with an increase of 30.7%, becoming one of top 70 prefecture-level cities in China. The actual foreign investment on the account exceeded $500 million with an increase of 166%; fixed asset investment and loan balance both reached over one hundred billion RMB, increasing by 26.3% and 31.9%, respectively. The increase amplitude of 8 major economic indicators took the top place in the province. 2.1 Development status of Suqian’s industry structure We use the data was based on “Statistical Yearbook of Jiangsu Province” during 2002-2013.We can find the three industrial output value of Suqian was in steady growth during 12 years from 2002 to 2013. The 685 EASTERN ACADEMIC FORUM primary industry increased by 15.262 billion RMB in 2013 compared to that in 2002, with the increase of 200.58%; the output value of secondary industry increased by 64.234 billion RMB than that in 2000, with the increase of 906.74%; the tertiary industry had a growth of 521.16 RMB than that in 2000, with the increase of 970.14%. Various industries had acquired rapid development, especially in the secondary and tertiary industries. Figure 3-1 showed the proportion of primary industry in Suqian had been rapidly decreasing in 13 years, presenting a steady growth in output value of the secondary and tertiary industry. The industrial structure of Suqian was transformed from the past “primary-secondary-tertiary” to “secondary-tertiaryprimary”, gradually optimizing the industrial structure. However, without playing the role of pillar industries yet, the tertiary industry of Suqian could not replace the secondary industry as a leading industry. Therefore, it indicated that the industrial structure of Suqian was still in continuous adjustment and optimization. Figure 3-1 Changing trend of the proportion of three industries in Suqian 3 Relationships Between Industrial Structure Adjustment and Economic Development The industrial structure of Suqian has been in constant adjustment with the continual economic development—it is the inevitable process of economic development. Based on analysis above, Suqian’s industrial structure has been toward rational adjustment since its establishment. Research on relationship between industrial structure adjustment and economic development has an important practical significance to Suqian as an underdeveloped city, especially for the achievement of rapid economic development and realization of a middle-developed city. 3.1 Research methods and data description Time series of economic phenomena in econometrics were required to be stationary. Cointegration theory proposed by Engle and Granger, two British economists, described that a long-term stable equilibrium relationship existed among the linear combination of non-stationary economic variable with the same order in time series analysis, namely cointegration relationship. Cointegration test included two main methods: least square method and maximum likelihood method. In order to study the contribution of the industrial structure adjustment to economic development of Suqian, the work adopted the GDP data of Suqian from 2002 to 2013 in “Jiangsu Province Statistical Yearbook”. The total GDP of Suqian was taken as independent variable with the primary industry as GDP1 and the secondary industry as GDP2; the tertiary industry GDP3 was the dependent variable. The independent variable and dependent variable used the price in 2002 as the cardinal number, with data base of actual GDP, thus ensuring the validity of data model. Data were mainly processed through EVIEWS7.0. 3.2 Casual relationship between industrial structure and economic growth 3.2.1 Principle of Granger causality Granger causality test, developed by the British quantitative economists Granger, was “a method testing one-way or two-way causal relationship between variables”. The logic of Granger test was as follows: when including past information of both variable X and Y, the predictive effect on variable Y was better 686 EASTERN ACADEMIC FORUM than that including Y with past information, indicating that variable X contributed to explaining the future changes of variable Y, then variable X was considered as Granger cause causing variable Y. But Granger causality test was the casual relationship in statistical significance rather than a real causal relationship. Regression analysis on Y used Granger causality test as follows: m m i =1 j =1 Yt = aiXt − i + bjYt − j + u1t s s i =1 j =1 Xt = ciXt − i + d jYt − j + u 2t 3.2.2 Data preparation and processing of Granger test GDP and X1, X2, X3 were converted with the base period of prices in 1990, taking real gross domestic product as the model data. The data after conversion was taken natural logarithm, thus eliminating the heteroskedasticity of economic time series, as well as improving linear trend among the variables. The causal relationship among variables was not changed, recording the variables as lnGDP, lnGDP1, lnGDP2 and lnGDP3, respectively. An important prerequisite for Granger test was the stability of time series of the test. The series stability was determined by unit root, using ADF method for verification by EVIEWS7.0 (See table below). Null Hypothesis: D(lnGDP,2) has a unit root Exogenous: Constant Lag Length: 0 (Automatic - based on SIC, maxlag=2) t-Statistic Augmented Dickey-Fuller test statistic -3.978608 Test critical values: 1% level -4.200056 5% level -3.175352 10% level -2.728985 Prob.* 0.0141 Null Hypothesis: D(lnGDP1,2) has a unit root Exogenous: Constant Lag Length: 0 (Automatic - based on SIC, maxlag=2) t-Statistic Augmented Dickey-Fuller test statistic Test critical values: 1% level 5% level 10% level -4.279472 -4.200056 -3.175352 -2.728985 Prob.* 0.0089 Null Hypothesis: D(lnGDP2,2) has a unit root Exogenous: Constant Lag Length: 0 (Automatic - based on SIC, maxlag=2) Augmented Dickey-Fuller test statistic Test critical values: t-Statistic Prob.* -4.268688 0.0104 1% level -4.297073 5% level -3.212696 10% level -2.747676 687 EASTERN ACADEMIC FORUM Null Hypothesis: D(GDP3,2) has a unit root Exogenous: Constant Lag Length: 0 (Automatic - based on SIC, maxlag=2) t-Statistic Augmented Dickey-Fuller test statistic -4.965103 Test critical values: 1% level -4.200056 5% level -3.175352 10% level -2.728985 Prob.* 0.0032 The above table showed that the P values of four variables were less than 5%; lnGDP, lnGDP1, lnGDP2 and lnGDP3 at the 5% significance level presented stability in the same order after second difference. Then co-integration test was conducted as follows. 3.2.3 Cointegration test Johansen test was used for cointegration test of lnGDP and lnGDP1, lnGDP and lnGDP2, lnGDP and lnGDP3, respectively, with the results as follows: Cointegration test of lnGDP and lnGDP1 Unrestricted Cointegration Rank Test (Trace) Hypothesized Trace 0.05 No. of CE(s) Eigenvalue Statistic Critical Value Prob.** None * 0.890251 27.64654 15.49471 0.0005 At most 1 0.090004 1.131778 3.841466 0.2874 Trace test indicates 1 cointegrating eqn(s) at the 0.05 level Cointegration test of lnGDP and lnGDP2 Hypothesized Trace 0.05 No. of CE(s) Eigenvalue Statistic Critical Value Prob.** None 0.583263 10.81015 15.49471 0.2234 At most 1 0.025223 0.306562 3.841466 0.5798 Trace test indicates no cointegration at the 0.05 level Cointegration test of lnGDP and lnGDP3:9 Hypothesized Trace 0.05 No. of CE(s) Eigenvalue Statistic Critical Value Prob.** None * 0.711907 15.65198 15.49471 0.0474 At most 1 0.058103 0.718311 3.841466 0.3967 Trace test indicates 1 cointegrating eqn(s) at the 0.05 level 688 EASTERN ACADEMIC FORUM The results showed that cointegration existed between lnGDP and lnGDP1, lnGDP and lnGDP3; there was no cointegration between lnGDP and lnGDP2. 3.2.4 Results analysis of Granger test EVIEWS7 was used for Granger test (Granger test could not be applied in lnGDP and lnGDP2 due to lack of cointegration relationship) with the following results. Table 3-4 Granger test of lnGDP, lnGDP1 and lnGDP, lnGDP3 Null Hypothesis: lnGDP1 does not Granger Cause lnGDP Obs F-Statistic Prob. 13 5.154 40 0.046 5 0.444 52 0.520 0 25.409 5 0.000 5 21.029 9 0.001 0 lnGDP does not Granger Cause lnGDP1 lnGDP3 does not Granger Cause lnGDP lnGDP does not Granger Cause lnGDP3 13 The above table showed that the null hypothesis (the primary industry GDP was not the cause of total GDP) was rejected because the P value was less than 5%. The null hypothesis that the total GDP was not the cause of primary industry GDP could not be rejected as the P value was greater than 5%. Two P values between the tertiary industry GDP and total GDP were less than 5%, both rejecting the null hypothesis. The demonstration proved that the relationship between industrial structure and economic growth of Suqian was more complex rather than one-way causal relationship. The primary industry and tertiary industry played a significant role in promoting economic growth of Suqian. Meanwhile, the economy stimulated the development of tertiary industry in Suqian. However, adjustments of the primary industry and secondary industry were less affected by economic growth of Suqian. 4 Suggestions and Measures on Industrial Structure Adjustment of Suqian The correlation between industrial structure adjustment and economic development has been proved through the above empirical analysis, thus it is necessary to optimize the industrial structure. 4.1 Optimizing industrial structure to promote industrial upgrading Agriculture is the basis of national economy. As a traditional major city of agriculture, Suqian has been related to national security. The adjustment of industrial structure has an extremely important role in further increase of agricultural productivity and improvement of agricultural output, thus consolidating the basic position of agriculture. Agriculture should be stably developed with effective solution for the “Three Agricultural Problems”. Suqian’s industry is relatively backward in Jiangsu Province, while the secondary industry becomes the dominant force of Suqian’s industry. The key to economic development of Suqian is the acceleration of optimization and adjustment of industrial structure. Suqian should take advantage of its rich natural and human resources, with its comparative advantage. Suqian economy should be integrated with Yangtze River Delta economy, promoting industrial structure optimization with constant improvement of industrial scale and production quality. The tertiary industry, as an important indicator of the socio-economic development level, is the main driving force for national economic development. With the continuous improvement of people’s living standards, the demand of the tertiary industry is continually increasing, especially for service industry. Therefore, clear preferential policy should be formulated by government to promote the development of tertiary industry of Suqian. 689 EASTERN ACADEMIC FORUM 4.2 Optimizing industrial distribution with formation of industrial clusters Suqian should accelerate the cultivation of characteristic industry and brands, with constant improvement of industrial concentration, thus promoting optimization and upgrading of industrial structure. With characteristics of centralization, profession and scale, industry cluster is an important way for the optimization of regional economic structure, promotion of enterprises innovation, and maintenance of continued growth of regional economy. 4.3 Intensifying development of technological innovation of enterprises Technological progress is an important factor of economic growth as well as the power for optimizing the industrial structure. Reasonable adjustment of local industrial structure should be promoted relying on technological innovation in Suqian, driving the rapid development of regional economy. The construction of technological innovation system should be accelerated, establishing a shared platform for innovation resources based on local universities, research institutions and enterprises with innovative strength. 5 Conclusions and Prospects The industrial structure of Suqian is developing toward the optimized pattern of “secondary-tertiaryprimary” while presenting a low level. Through the above quantitative and qualitative analysis, the general direction of industrial structure adjustment of Suqian is as follows: the secondary industry should be developed as a pillar industry, focusing on the improvement of the proportion of tertiary industry; the basic position of primary industry should be consolidated, improving production efficiency of agriculture. Acknowledgements: We thank the financial supports from the National Nature Science Foundation of China (71072028). References [1]. Zhang Shuling. Research on the Industry Structure Contribution to Economic Growth in Zhengzhou City, D, Zhengzhou University. 2011 (in Chinese) [2]. Zheng Dongpo. Research on Qintangcang regional industrial structure optimization, D, Hebei University. 2011 (in Chinese) [3]. Gao Xin. Research on the Development of Industry Structure of the Less-developed Areas in Southeast China, AMOY University. 2011 (in Chinese) [4]. Nie Tao. The Countermeasure Research of Zhongshan Industrial Structure Adjustment, Tongji University. 2012 (in Chinese) 690