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​第66回研究会＠富山大学

The 66th Meeting in Toyama, Japan

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Date

2025年12月20日（土）

December 20, 2025 

Venue

富山大学五幅キャンパス（経済学部研究棟４階経済学科共同研究室）

Toyama University​ (Gofuku Campus, Faculty of Economics Research Bldg., Dept. of Economics Joint Research Room)

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Program:

13:30 - 14:30

近藤　健児（中京大学）

Kenji KONDOH (Chukyo University)

Title: Construction, Nursing Care, and Agriculture: Economic Impacts of the Policies of Introducing Additional Foreign Workers Limited to Certain Industrial Sectors (joint with Takaaki Morimoto)

Abstract:

  Applying extended Copland and Taylor (1999)-type two-factor, four-sector economic model, we examine the economic impact on trade, natural environment, wage gap, and economic welfare of policies to increase the number of foreign workers in the construction, agriculture, and nursing care sectors, each of which plays a different role in the economy. We find that if the urban-rural wage gap is small enough, under certain conditions, introducing additional foreign workers to the agriculture sector may cause positive effects on domestic economic welfare regardless of expanding urban-rural wage gap and a declining natural environment. While introducing foreign workers to the construction or nursing care sector will surely reduce domestic economic welfare. If the urban rural wage gap is large enough to encourage rural domestic workers to move to urban area, foreign workers’ introduction to any sector must reduce domestic economic welfare.

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14:30 - 14:40     Coffee Break

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14:40 - 15:40

今井　雄一（富山大学）

Yuichi IMAI (Toyama University)

Title: Compact Cities and Economic Theories of Urban Sprawl

Abstract:

  This paper develops the closed city model of housing demolition under population decline. The equilibrium demolition pattern suggests that the city may exhibit the “doughnut” residential pattern, where some areas in the middle of the city are non-residential. Although this pattern is efficient, it also indicates that some policy interventions would be necessary, if policymakers wished to maintain the spatially connected residential areas.

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15:40 - 16:00     Coffee Break

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16:00 - 17:00

松原　聖（日本大学）

Kiyoshi MATSUBARA (Nihon University)

Title: Types of Japanese Firm’s FDI in Poland: A Firm-Level Data Analysis

Abstract:

  This study focuses on Japanese firm’s FDI into Poland, which has been the gateway of FDI in Central and Eastern European countries. In this study, firm-level data of Japanese companies operating in foreign countries in years 2010, 15, 19 to 22 are examined. The tentative results are as follows. First, on average, the parent companies for wholesalers are larger than those for manufacturers in terms of capital stock. This observation is not consistent with results of Krautheim (2013), who shows with German-firm data that larger manufacturers choose horizontal FDI rather than exports with FDI establishing a wholesaler or a retailer, which he calls export-supporting FDI. Second, among parent companies who have more than one affiliate, on average, the following companies are largest and second largest respectively; Largest: they first established wholesalers and then established manufacturers. Second largest: they first established manufacturers and then established wh
olesalers. This observation is also not consistent with the results of Krautheim (2013).

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17:00 - 17:10     Coffee Break

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17:10 - 18:10

東田　啓作（関西学院大学）

Keisaku HIGASHIDA (Kwansei Gakuin University)

Title: Gaming for Cohesion: A Study on Integrating Refugees Through Virtual Intergroup Contact (joint with Ryo Takahashi, Yuki Higuchi, and Mohammad Mosharraf Hossain

Abstract:

  We study whether virtual intergroup contact can foster social cohesion between host communities and refugees. We conduct a nationwide randomized controlled trial in Bangladesh in which participants played a cooperative online game with refugee teammates whose in-game performance was experimentally varied. Contact improved cohesion?reducing hostility, improving attitudes, and motivating in-person interaction?when refugee performance was equal to or lower than that of participants. However, interactions with higher-performing refugees enhanced beliefs about their abilities but did not lead to social cohesion. These findings highlight the heterogeneous effects of intergroup contact depending on perceived outgroup attributes.

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19:00   Dinner