Analysis of income inequality and economic growth with non-homothetic preferences

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K01674
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 07040:Economic policy-related
• Research Institution: Kobe University
• Principal Investigator: Iwasa Kazumichi 神戸大学, 経済経営研究所, 教授 (00534596)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: 非相似拡大的選好 / 動学的貿易モデル / 所得格差 / 不決定性

Outline of Final Research Achievements

In a theoretical model in which indeterminacy occurs, with non-homothetic preferences, I have shown that indeterminacy occurs under more moderate conditions by removing the production-side conditions that had been placed on it.

In a dynamic trade model with varying subjective discount rates,I have derived the conditions for the possibility of a developing country catching up with a developed country, by assuming that the discount rate depends on the income level of its trading partners in addition to its own income level.

Free Research Field

国際経済学

Academic Significance and Societal Importance of the Research Achievements

現実のデータと整合的な非相似拡大的選好、あるいは一定でない主観的割引率を理論モデルに導入することで、より現実に即したモデルを構築して理論分析を行った。そして、経済の均衡経路の安定性に関する条件、あるいは、国際貿易によって発展途上国が先進国にキャッチアップするための条件について、これまで示されていない結果を導出し、各財の所得弾力性の相違といった需要サイドに関わる条件を明らかにした。