COMPARISON OF RENEWABLE ENERGY INDUSTRY'S GROWTH POTENTIAL BY COUNTRY USING OECD INDUSTRY'S INPUT-OUTPUT TABLES Dongjun Lee, Seoul National University, Phone +82-2-880-8284, E-mail: mjun@snu.ac.kr Eunnyeong Heo, Seoul National University, Phone: +82-2-880-8284, E-mail: heoe@snu.ac.kr Overview The increase in cost for using fossil fuel and deepened problem of climate change are increasing the motive toward the development of renewable energy. Especially in recent days, the developed countries as well as nonOECD countries that would seem to lead the increase of energy demand are planning a large scale investment to raise renewable energy industry. In such aspect, it seems certain that the renewable energy would grow considerably throughout the world. But in many countries, the renewable energy is still not an economical and must be developed further. Therefore, it is necessary for each country to invest by selecting relatively the most economical renewable energy considering the natural environment and technological standard. In this study, the growth potential of renewable energy industry has been compared by analyzing the industries committed for the development of renewable energy using the input-output tables published by OECD. To make this possible, the study is made up of three main parts. First is the classification on renewable energy commitment industry. In current OECD input-output tables, the renewable energy industry has not been defined separately. Therefore, we can only analyze indirectly through related industries in order to analyze the renewable energy industry. In this study, the key industries committed for creating renewable energy industry has been investigated through literary research and this has been re-classified according to the industrial classification of OECD input-output tables. The second is the analysis on economical effect of investment on industries classified above on each country. Generally, as the economical far reaching effect on corresponding industry becomes greater, the investment factor on that industry will become higher. Third is the analysis of association rule by industry using clustering. Such analysis has been performed under the assumption that the creation and growth of renewable energy industry would also become easier if each industry has high connected relations because renewable energy industry is accomplished by harmony of each key industry. Methods Input-Output Analysis, Cluster Analysis Results First, the committed industries have been organized by adjusting to the OECD industrial classification by each renewable energy source. Second, we have attempted to select the renewable energy with high investment motive by country Third, the degree of connection by renewable energy commitment industry has been compared by country and this has been compared once again by classifying into OECD countries and non-OECD countries. But it didn't show a remarkable huge difference and a verification seems necessary later on for the significance of such results. Conclusions In this study, we have tried to research on the growth potential of each renewable energy industry by country after analyzing far reaching economic effects of investment on key renewable energy industries and the degree of connection between industries. Such study would have to be organized again considering natural conditions of the future and current technological standard, etc. But the result is estimated to have significance from the fact that it can provide a policy-oriented implication for raising the renewable energy industry by analyzing the investment priority and connected relationships under current economic structure. References B. Cabrer, D. Contreras, E. Miravete. (1991): “Aggregatioin in Inpit-Output Tables: How to Select the Best Cluster Linkage”, Economic systems Research, Vol. 3, No. 2, pp99-100 Fisher, W. D. (1969): Clustering and Aggregation in Economics , Baltimore, Johns Hopkins Press Gim, H.U. (2009): "An Growth Potential Analysis by Sectors through Interindustry Multiplier Effects: Based on a Comparative Analysis through the IO and OO Models," The Korea Spatial Planning Review, Vol. 63, pp 43-66 Kang , G.D. (2002): "A Study on the Industrial Linkage based on I/O Tables and Its Policy Implication of ICT Cluster in Korea" ," The Korea Spatial Planning Review, Vol. 34, pp 99-112 Miller, R. E. and Bliar, P. D. (1985): Input-output analysis : Foundation, and extensions, Pentice-Hall, Inc. _______________________ (2009): Input-output analysis : Foundation and extensions, Combridge University Press Yamano. N, and Ahmad. N (2006) : “THE OECD INPUT-OUTPUT DATABASE: 2006 EDITION”, STI Working Paper