要旨：本研究は戦後日本の人口移動と経済成長の相互依存関係を分析するため、立地の最適決定を含む２地域の経済成長モデルを構築した。分析の結果、人口移動は日本全体、三大都市圏の一人当たり所得の成長率を加速させた一方、非三大都市圏のそれを減衰させたことが明らかになった。また、高い経済成長率は長期的には人口移動を加速させるが、短期的にはそうでないことが示され、クズネッツの経済成長と人口移動の関係についての仮説に非線形性があることが示唆された。その他、両者の関係を説明する上で産業構造の変化が重要であること、それに伴った移動費用の減少が世代間の不公平を生じさせうることが示唆された。

要旨：The welfare effects of capital market integration are examined under a model of tax competition with two asymmetric countries. The asymmetry is expressed through labor market institution; one country has perfect labor market, whereas the other country is unionized. Our results show that the welfare effects of capital market integration are different depending on whether governments play an active role for attracting capital: in the absence of active governments, the capital market integration benefits a country with competitive labor market and harms the unionized country. If the governments are active and competes for mobile capital by using tax/subsidy instrument, the market integration benefits both countries. The government's incentive to participate in tax/subsidy game is also examined in the integrated capital market. We find that the unionized country always prefers to participate tax/subsidy game, but the non-unionized country avoids the game if it is a capital-importer.