非対称情報のもとでの外国人労働者の受け入れ

概要

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We investigate the effects of immigrants on the economy comprised of substitute and complement industries under asymmetric information. In this economy, wages are determined according the efficiency wage hypothesis. Immigrants are substitutes for native workers in the substitute industry and immigrants are complements to native workers in the complement industry. We also assume that effective labor per capita differs among immigrants and that firms in the host country do not have complete information on individual effective labor of employed immigrants. We show that it is likely that in the substitute (complement) industry native worker utility increases (decreases) and the profit of firms decreases (increases) as more immigrants are accepted. This result is contrasted with the case where there is no asymmetry of information between firms and immigrants. In other words, when information is symmetric, the native worker utility becomes lower (higher) and the profit of firms becomes larger (smaller) in the substitute (complement) industry with increases in the number of immigrants. Our results suggest that the conflicting relation of interests between native workers and firms are affected by the availability of information as well as by the relation of native workers and immigrants as factors of production.
長崎大学の論文