This report will discuss methodologies for revitalizing the economy in the Kansai region of Japan, firstly by clarifying the problems with existing revitalization proposals. Secondly, it will propose the author"s own revitalization strategy for the Kansai region. In doing so, a comparison of the structures of the Korean and Japanese economies will provide a useful perspective. The report will be developed in the following order. In Section 2, "Comparison of the Two Industrial Processes," the industrialization process of Korea and Japan after World War II is compared from the perspective of industrial economics and economic development theory. The aim is that the development models that have determined the economic structures of the Japanese economy, including the Kansai region, and the Korean economy are significantly different, and that this difference in economic development strategies is still accompanied by path dependence. By comparing the two countries, it is shown that Korea adopted a development strategy called Export Oriented Industrialization (EOI) to develop its economy, while Japan achieved high economic growth through domestic demand-led economic development. However, what I want to say here is not to rank the development models or industrialization strategies. Rather, I want to pay attention to the fact that the industrialization processes of both countries were rationally formed according to the initial conditions that both countries had, and that the economic structures that were formed as a result of this still determine the economic activities and economic policies of both countries today. Recent economic history research also incorporates the knowledge of game theory to explain this situation with the term "path dependence." Path dependency is defined as "the phenomenon in which a series of economic changes affects final outcomes in important ways in response to events that are separated in time" (Paul David [1985]). In Section 3, "Export-led vs. Domestic-led," it is argued that the methodological direction of Japan"s economic development will continue to be a domestic demand-led development model, based on the conclusions of Section 2. However, the unfortunate thing is that Japan"s domestic demand has been consistently sluggish for about 30 years from the early 1990s to the present, due to the so-called "lost 30 years." This can be confirmed by contribution analysis, but the discussion of the long-term trend of low birth rates and population decline has accelerated pessimism about the domestic market. In addition, the call for globalization has developed into a belief that domestic thinking is outdated, leading to envy of the Korean economic model, which is ahead of the rest in globalization. Such assumptions based on our own experience must be verified by calm thinking accompanied by numbers. In this section, we will calculate how many more export companies of Toyota class are needed to transform the Japanese economy into a Korean-style economy, using Toyota Motor Corporation, Japan"s representative export company, as a unit. As a result of the calculations, we conclude that it is unrealistic to change Japan"s domestic demand-led model, which has been cultivated through path dependency, to the Korean-style external demand-led model. We also add that an economy centered on domestic demand means a fulfilling life for the people. The conclusions reached in the previous section were: 1) the economic development of Japan and South Korea is path-dependent, as the economic structures built up through their industrialization process have determined the economic activities and economic policies of both countries to date; and 2) in the case of Japan, the domestic demand-led economic development model is path-dependent, so ignoring this and trying to transform Japan into an export-dependent economic structure like South Korea"s would be unrealistic, as can be seen from the calculations. In Section 4, "Methodology for Kansai Economic Revitalization," I build on the conclusions reached in the previous section and point out that there are still problems that cannot be overlooked in discussions of economic revitalization and development. To this end, I introduce the urban theory of urban researcher Jane Jacobs, and explain the "micro-macro disconnect" that many regional revitalization proposals fall into. This report proposes a theory for revitalizing Kansai, arguing that a diversity-based regional revitalization model is more appropriate than a monoculture-based model in today"s rapidly changing environment, and that in a diversity-based model, the key activities are human interaction and connections, and the discussion that takes place within them. Such activities will give rise to intermittent activities at smaller units that make up the broader Kansai economic sphere, and that ultimately it is this combined strength that has the power to drive the macroeconomy.