علیت خطی و غیر خطی بین مصرف برق بخشی و رشد اقتصادی: شواهد از تایوان
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|11110||2010||4 صفحه PDF||سفارش دهید|
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|شرح||تعرفه ترجمه||زمان تحویل||جمع هزینه|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Energy Policy, Volume 38, Issue 11, November 2010, Pages 6570–6573
This study investigates the linear and nonlinear causality between the total electricity consumption (TEC) and real gross domestic production (RGDP). Unlike previous literature, we solve the undetermined relation between RGDP and electricity consumption by classifying TEC into industrial sector consumption (ISC) and residential sector consumption (RSC) as well as investigating how TEC, ISC, and RSC influence Taiwan's RGDP. By using the Granger's linear causality test, it is shown that (i) there is a bidirectional causality among TEC, ISC, and RGDP, but a neutrality between RSC and RGDP with regard to the linear causality and (ii) there is still a bidirectional causality between TEC and RGDP, but a unidirectional causality between RSC and RGDP with regard to the nonlinear causality. On the basis of (i) and (ii), we suggest that the electricity policy formulators loosen the restriction on ISC and limit RSC in order to achieve the goal of economic growth.
In the 19th century, Michael Faraday's discovery of electromagnetic induction contributed to the advancement of human civilization and ushered in a new age of electrification. Indeed, this historic invention has not only upgraded the living standards of human beings but also increased product efficiency and economic growth. However, the 20th century brought with it the effect of global warming and environmental consciousness; these developments led to the reconsideration of environmental protection rules. To address this issue, delegates from more than 160 countries met in Kyoto, Japan, in 1997 to draft an agreement called the Kyoto Protocol. This agreement demands a decrease in carbon dioxide emissions. The U.S. tends to not sign any protocol that fails to include binding targets and timetables for both developing and industrialized nations or a protocol that would seriously harm its economy. This leads to a dilemma regarding whether the policy focus should be on energy saving and carbon reduction or economic growth. Many studies have discussed the relation between electricity consumption and real gross domestic production (RGDP) by using a causality test. However, the effect of this relation has hitherto not been discussed. Existing studies on this topic can be classified into four types. The first type, which includes Ho and Siu (2007), Shiu and Lam (2004), and Narayan and Singh (2007), indicates that electricity consumption affects RGDP. On the contrary, the second type, comprising Ghosh (2002), Jumbe (2004), and Narayan and Smyth (2005), suggests that RGDP affects electricity consumption. The third type, which includes Yang (2000), Yoo (2005), and Oh and Lee (2004), suggests that there is a bidirectional causality between RGDP and electricity consumption. Yemane (2006) and Yoo (2006), which belong to the fourth type, indicate that a neutrality exists between RGDP and electricity consumption. In order to formulate the most feasible electric policy that maximizes social welfare and lowers the resulting impact on the economic system, it is essential for policy makers to determine whether electricity consumption benefits RGDP or RGDP drives the increase in electricity consumption. To clarify this undetermined relation between RGDP and electricity consumption, we classify total electricity consumption (TEC) into industrial sector consumption (ISC) and residential sector consumption (RSC) for the following reasons. First, we consider the factor of TEC of different parts of electricity consumption sectors. Therefore, each sector is assigned different weights of TEC summation, varying with time. For example, in the early period of Taiwan's agricultural society, agricultural electricity consumption accounted for a higher percentage of TEC. However, with the subsequent industrialization of Taiwan, industrial electricity consumption mainly accounted for a higher percentage of TEC. Hence, the classification of TEC not only helps us to analyze the causality but also distinguishes the essential types of electricity consumption. Second, on the basis of economic intuition, higher ISC may reflect increased investments on machinery equipment, resulting in higher economic growth. Similarly, higher RGDP accumulation may increase a firm's capital investment capacity and help increase ISC. This shows that there may be a bidirectional causality between ISC and RGDP. Third, with regard to RSC, the increase in RGDP increases the purchasing power of the public. Therefore, the public can afford an increasing number of luxury electronic devices and appliances; this leads to an increase in RSC, which reveals a unidirectional causality relation between RGDP and RSC. In light of these three reasons, we can conclude that as long as each sector can be distinguished and the causality relation between RGDP and each sector is clear, electric policy formulators will have sufficient information to devise specific rules or policies to control the quantity of consumption. In this study, we attempt to investigate how TEC, ISC, and RSC influence Taiwan's RGDP by using two empirical tools: Granger's (1969) linear causality test and the nonlinear causality test proposed by Hiemstra and Jones (1994). The reason for using nonlinear causality test is as Chiou-Wei et al. (2008) and Lee and Chang (2005) suggested that economic incidents, changes in the environment, electricity policy alterations, and fluctuations in oil prices can lead to structural changes in the pattern of electricity consumption for a given time period under study. This creates a scope for a nonlinear relationship between electricity consumption and economic growth. Because of the possibility of a nonlinear relation among variables, we use the i.i.d. test proposed by Brock et al. (1987) to determine whether the residual in the linear model is nonlinear or not. If the residual is rejected in the i.i.d. test, the nonlinear causality test suggested by Hiemstra and Jones (1994) can be executed. The empirical results of the linear causality test show a bidirectional causality among TEC, ISC, and RGDP but not between RSC and RGDP. On the contrary, after testing the residual in the linear model, we find that a nonlinear relationship exists among TEC, RSC, and RGDP. In addition, the nonlinear causality test results indicate that a bidirectional causality still exists between TEC and RGDP, but there is a unidirectional causality between RSC and RGDP. The rest of this paper is organized as follows. Section 2 constructs the empirical methods, including the Granger linear causality, BDS, and nonlinear causality tests. Section 3 explains the empirical results. Finally, concluding remarks and policy implications are presented in Section 4.
نتیجه گیری انگلیسی
In contrast to previous studies, this study classifies TEC into ISC and RSC and investigates the nonlinear and linear causality between TEC and GDP. The linear causality test results indicate that there is a feedback effect between ISC and RGDP, but a neutrality exists between RSC and RGDP. Furthermore, we use the nonlinear causality test suggested by Hiemstra and Jones (1994) to test the possibility of nonlinear causality among variables. The empirical results reveal that there is a bidirectional causality between TEC and RGDP; however, RSC is still affected by RGDP. Ho and Siu (2007) propose that a higher level of income and saving may lead to higher consumption of durable goods. For example, higher electricity consumption by residential appliances such as televisions and refrigerators may lead to higher household electricity consumption. On the basis of the empirical results, we are inclined to put forth two perspectives. First, from the perspective of the electricity consumption policy, increasing electricity demands, and the tendency toward energy saving and carbon reduction for solving the problem of global warming, the government authorities should take measures to promote the use of non-polluting substitutive energy or power-generating methods that reduce carbon emission. Considering the geographical environment in Taiwan, power generation using renewable resources such as water, wind, or solar energy as a replacement for generators running on fuel is feasible. Second, from the perspective of economic growth by examining the electricity consumption policy, the feasible way in this paper is to expand the electricity consumption in the industrial sector. Recently, Arun (2008), Oikonomou et al. (2009), and Yang (2010) agree that the energy efficiency in industry favors the gains in competitiveness, brings more productivity as well as indirect benefits to economic growth. Hence an alternative way such as energy efficiency to achieve the economic growth is worth mentioning. In addition, the policy of energy saving in the residential sector is practical, for example, charging different rates for electricity overconsumption or subsidizing low electricity consumption.