On the sustainability of a monocentric city : lower transport costs from new transport facilities

This paper proposes a general equilibrium model of a monocentric city based on Fujita and Krugman (1995). Two rates of transport costs per distance and for the same good are introduced. The model assumes that lower transport costs are available at a few points on a line. These lower costs represent new transport facilities, such as high-speed motorways and railways. Findings is that new transport facilities connecting the city and hinterlands strengthen the lock-in effects, which describes whether a city remains where it is forever after being created. Furthermore, the effect intensifies with better agricultural technologies and a larger population in the economy. The relationship between indirect utility and population size has an inverted U-shape, even if new transport facilities are used. However, the population size that maximizes indirect utility is smaller than that found in Fujita and Krugman (1995).

Sustainable development goals and Japan -- sustainability overshadows poverty reduction

The Development Cooperation Charter of Japan, which took over the ODA (Official Development Assistance) Charter in February 2015, drives Japan's cooperation towards non-poor countries and non-poverty issues. The Sustainable Development Goals (SDGs) put Japan forward in these directions. As a result, in Japan the focus on global poverty reduction is overshadowed by its national interests and sustainability under the concept of universality, which was a core principle of the SDGs as differentiated from the Millennium Development Goals.