This book describes various methods of analysis for ascertaining the effects of agglomeration economies, which are important for formulating regional economic policies. Specifically, it describes new analytical approaches using productivity and productive efficiency analyses as methods for understanding agglomeration economies. Additionally, the book provides application results for Japanese regions and proposes desirable regional policies. According to the new analytical methods advocated in this book, agglomeration economies are larger in major metropolitan areas than in local regions, and in the manufacturing sector than in the non-manufacturing sector. These results are consistent with general knowledge. Moreover, the majority of productivity growth pertaining to regional economies is explainable by improvements to accessibility. Improving accessibility for regions reduces transportation costs between them and strengthens agglomeration economies, which, in turn, enable the sustainable development of regional economies. Therefore, this book highlights the need not only to reinforce existing agglomeration areas, but also to form a network between these agglomerations and to strengthen it, so as to realize regional economic growth despite a decreasing population.

This book highlights the roles of inter-regional networks in regional economies to explore the drivers of sustained regional economic growth. Many industrialized countries are currently undergoing a period of population decline. To enhance sustainability in the regional economy, it is necessary to increase productivity and improve energy efficiency. This book provides new approaches to describing the economic effects of inter-regional networks, which are key to enhancing regional economic growth, using productivity analysis. In addition, it also furnishes considerable evidence on the formation of high-speed transportation infrastructure. Traditional studies on agglomeration economies have focused on external economies that occur in spatially limited areas and have not considered agglomeration economies from a broader perspective, i.e., from the perspective of inter-regional networks. In particular, recent studies have identified that the actual spatial range that would benefit from agglomeration economies is broader than that covered by conventional studies. This volume explains the phenomenon using Alonso's concept of borrowed size. This is the first book to show the impact of inter-regional networks on Japan's regional economy using the concept of the borrowed-size effect. Based on empirical evidence, the roles of inter-regional networks are determined in the context of the regional economy that faces population decline and environmental constraints. A deeper consideration of the analytical methods and understanding the results of detailed analyses will make it possible to propose desirable regional economic policies in the face of population decline. This book thus provides valuable insights into the regional economic development of Japan, which is particularly pertinent to other countries with similar land structures.

This book describes various methods of analysis for ascertaining the effects of agglomeration economies, which are important for formulating regional economic policies. Specifically, it describes new analytical approaches using productivity and productive efficiency analyses as methods for understanding agglomeration economies. Additionally, the book provides application results for Japanese regions and proposes desirable regional policies. According to the new analytical methods advocated in this book, agglomeration economies are larger in major metropolitan areas than in local regions, and in the manufacturing sector than in the non-manufacturing sector. These results are consistent with general knowledge. Moreover, the majority of productivity growth pertaining to regional economies is explainable by improvements to accessibility. Improving accessibility for regions reduces transportation costs between them and strengthens agglomeration economies, which, in turn, enable the sustainable development of regional economies. Therefore, this book highlights the need not only to reinforce existing agglomeration areas, but also to form a network between these agglomerations and to strengthen it, so as to realize regional economic growth despite a decreasing population.

This book describes structural analysis methods for examining energy demand and energy efficiency that are important in formulating regional economic and environmental policies. Beginning with ways of ascertaining regional energy demand, it describes methods for developing energy efficiency indicators and their determinants. Fluctuations in regional energy demand are largely explained by analyzing variations in energy intensity, and there is a strong association between energy efficiency indicators and energy intensity. The energy efficiency indicator proposed is consistent with fluctuations in energy intensity and is highly accurate. According to the empirical analysis using this indicator, energy efficiency is high in regions where population concentration has risen, as typified by "compact cities." As such, the book highlights the need to increase regional energy efficiency, to achieve regional economic growth despite growing environmental constraints, and the importance of forming and developing clusters to this end. The book is a valuable resource for planners, researchers and government employees.

This book highlights the roles of inter-regional networks in regional economies to explore the drivers of sustained regional economic growth. Many industrialized countries are currently undergoing a period of population decline. To enhance sustainability in the regional economy, it is necessary to increase productivity and improve energy efficiency. This book provides new approaches to describing the economic effects of inter-regional networks, which are key to enhancing regional economic growth, using productivity analysis. In addition, it also furnishes considerable evidence on the formation of high-speed transportation infrastructure. Traditional studies on agglomeration economies have focused on external economies that occur in spatially limited areas and have not considered agglomeration economies from a broader perspective, i.e., from the perspective of inter-regional networks. In particular, recent studies have identified that the actual spatial range that would benefit from agglomeration economies is broader than that covered by conventional studies. This volume explains the phenomenon using Alonso's concept of borrowed size. This is the first book to show the impact of inter-regional networks on Japan's regional economy using the concept of the borrowed-size effect. Based on empirical evidence, the roles of inter-regional networks are determined in the context of the regional economy that faces population decline and environmental constraints. A deeper consideration of the analytical methods and understanding the results of detailed analyses will make it possible to propose desirable regional economic policies in the face of population decline. This book thus provides valuable insights into the regional economic development of Japan, which is particularly pertinent to other countries with similar land structures.