要旨：This paper considers a class of migration dynamics with forward-looking mobile workers in a many-region solvable variant of the core-periphery model of Krugman (Journal of Political Economy 99 (1991)). We find that our static model admits a potential function, which allows us to identify a location distribution of workers that is uniquely absorbing and globally accessible under the perfect foresight dynamics whenever the degree of friction in location revisions is sufficiently small. In particular, when trade barriers are low enough, full agglomeration in the region with the highest barrier is the unique stable distribution for small frictions. New aspects in trade and tax policy that arise due to forward-looking behavior are discussed.

要旨：各都市内の空間構造を陽表的に取り入れた多都市動学モデルを提案、分析。建物の耐久性を考慮しつつ、地域（国）の人口・経済成長に応じて各都市がどのように開発されるかを示した上で、後の時点においてどの地点から衰退がはじまるかを考察（通常の条件下では、古い都市の中心部または都市境界付近。）建物の歴史的価値・完全予見・再開発・人口移動を含む場合に関して、それぞれ拡張を行う。歴史的価値に関する実証分析も行い、結果を提示。

要旨：The aim of this paper is to qualify the claim that regulating a competitive transport sector is always detrimental to consumers. We show indeed that, although transport deregulation is beneficial to consumers as long as the location of economic activity is fixed, this is no longer true when, in the long run, firms and workers are freely mobile. The reason is that the static gains due to less monopoly power in the transport sector may well map into dynamic dead-weight losses because deregulation of the transport sector leads to more inefficient agglomeration. This latter change may, quite surprisingly, increase consumer prices in some regions, despite a more competitive transport sector. Transport deregulation is shown to map into aggregate consumer welfare losses and more inequality among consumers in the long run.