要旨：Both terms of regional integration and the economics of integration developed in international economics are used lavishly in the case of domestic inter-regional analysis in China whiles the new economic geography is flooding the classrooms of economics at almost all major universities in mainland China. Based on the analysis of the peculiarities of the multi-layered regions and deep governmental involvements in economies, author of this paper suggested that the clever choice is to combine the both theories together in analyzing the inter-regional economies of China, as it is very complicated.

要旨：本発表においては1955年から2001年に渡る日米の地域間個人所得格差をいくつかの新しい分析視点から比較検討する。具体的には伝統的な分析視点である、空間的不平等の時系列的変化としての「σ（シグマ）収束・拡散」だけでなく、地域所得分布の両極化、地域間所得階層の固定化、地域所得水準の空間相関など複数の格差次元を考慮することにより、両国の地域経済変動のより深い理解を目指す。その過程において、既存研究では軽視されがちであった地域スケールによる分析結果の違いに特に注目し、その仮説的説明を行う。日米に共通して観察される事実としては、近年においては地域間の所得階層がより固定化されていること、隣接地域間の所得水準格差が拡大傾向にあること、より小さな地域スケール（例：州間よりも郡間）において所得格差の拡大が進んでいることが挙げられる。最後に本研究の結論として、地域間所得格差に関する議論や政策は多次元的な格差視点に基づく分析が不可欠であることを示す。

要旨：This paper analyzes theoretically and empirically the relationship between military conflicts and trade. We show that the intuition that trade promotes peace is only partially true even in a model where trade is beneficial to all, military conflicts reduce trade and leaders take into account the benefits of peace. When war can occur because of the presence of asymmetric information, the probability of escalation is lower for countries that trade more bilaterally because of the opportunity cost associated with the loss of trade gains. However, countries more open to global trade have a higher probability of war because multilateral trade openness decreases bilateral dependence to any given country. We test our predictions on a large data set of military conflicts on the 1950-2000 period. Using different strategies to solve the endogeneity issues, including instrumental variables, we find robust evidence for the contrasting effects of bilateral and multilateral trade openness.

要旨：Spatial wage disparities can result from spatial differences in the skill composition of the workforce, in non-human endowments, and in local interactions. To distinguish between these explanations, we estimate a model of wage determination across local labour markets using a very large panel of French workers. We control for worker characteristics, worker fixed effects, industry fixed effects, and the characteristics of the local labour market. Our findings suggest that individual skills account for a large fraction of existing spatial wage disparities with strong evidence of spatial sorting by skills. Interaction effects are mostly driven by the local density of employment. Not controlling for worker heterogeneity leads to very biased estimates of interaction effects. Endowments only appear to play a small role.

要旨：Challenging the common literature of economic growth and development that tends to assign the agrarian sector the backseat, Fujita's paper seeks to move agriculture and rural development to the forefront through a community- based strategy to cause major innovation dynamics and human capital accumulation to occur. From the viewpoint of spatial economics and endogenous growth theory, this paper considers One Village One Product Movement and Michino Eki initiatives in Japan as rural development strategies of a broader nature based on "brand agriculture," with special attention given to the role of various types of infrastructure. Both initiatives have attracted widespread attention in many developing countries as potential tools for bridging the gap between cities and rural areas. The paper concludes with a discussion for successful promotion and implementation of brand agriculture programs in developing countries.

要旨：中心市街地やそこに存在する商店街は、従来、まちの顔、賑わい、出会いの場、治安など、さまざまな機能を似ない、これは外部経済効果を有するものであった。近年の中心市街地の衰退により、この貴重な機能を担うことが難しくなっており、それを、市民、ボランティア、他地域企業などの新たな担い手が代わりに担う努力をしなければ、地域全体の損失となる。具体例として旧清水市の七夕を取り上げ、各地の七夕との比較しながら議論する。

要旨：京都には、ハイテク有名大企業と産学連携に積極的な大学の集積があるが、中小企業には産業クラスター（産業集積の中に産学連携や新製品開発目的の企業間連携が発達したものとして定義）形成の担い手となりうる企業はどのくらい存在するであろうか？本報告では、「平成15年度京都市ものづくり産業調査」の個票データを用い、首都圏西部のTAMA地域に見られる製品開発型中小企業との比較も踏まえ、京都市の機械金属系製造業の中小企業の研究開発や産学連携に関する分析結果を紹介し、京都が産業クラスターとして発展するための課題を検討する。なお、本報告は、平成１７年度に独立行政法人経済産業研究所から京都大学への委託事業として作成した「産業クラスターに関する研究事業に係る調査研究報告書」を活用して行う。

要旨：The purpose of this paper is to examine how the transportation costs of final good and intermediate goods influence on the location of firms. We develop a three-region model in which the production of final good requires differentiated intermediate goods. Although a region provides lower labor cost, when the transportation cost of intermediate goods is high, no firms relocates to that region. However, as the transportation costs of intermediate goods becomes lower, firms in the final good sector relocate to that region and launch assembly production with intermediate goods imported from the other region.

要旨：This paper studies the conditions for the consolidation of political jurisdictions. We focus on the tradeoff between the scale merit and the heterogeneity of preference among residents. That is, large jurisdictions enjoy the benefit of scale but must incur the cost due to the increment of heterogeneity among their populations. In addition to this, the land public ownership yields the strategic interaction: the agreement of the consolidation of some towns induce the consolidation of remaining towns. Our model implies that i) the consolidation might be too much observed under the decentralized regime; ii) observed number of the consolidation might be inefficiently large.

要旨：We construct a framework in which public infrastructures that reduce transportation costs are explicitly introduced in new economic geography models in which the sectors with vertical linkages are concentrated in a limited number of countries. Using this framework, we consider the outcome of the public-infrastructure-provision games by welfare-maximizing governments. In the model, a pure strategy Nash equilibrium does not necessarily exist. We show that there exists a mixed strategy Nash equilibrium in which the public infrastructure investments by a country lacking a sector with vertical linkage have much larger variance than those by a country hosting the sector. The less industrialized country has the incentive to outlay tremendous amounts of public infrastructure investment to attract the sector within its own borders. Consequently, the relocation of an industry with vertical linkage can occur with a small but definitely positive probability.