Inequality and catching-up under decreasing marginal impatience

B-Tier
Journal: Journal of Mathematical Economics
Year: 2020
Volume: 91
Issue: C
Pages: 99-110

Authors (2)

Iwasa, Kazumichi (not in RePEc) Zhao, Laixun (Kobe University)

Score contribution per author:

1.005 = (α=2.01 / 2 authors) × 1.0x B-tier

α: calibrated so average coauthorship-adjusted count equals average raw count

Abstract

This paper examines how endogenous time preference interacts with inequalities in economic development. We consider two distinct groups of households with intrinsic inequality (e.g., capitalists and workers), and show that (i) under decreasing marginal impatience (DMI), an unequal society may be preferable for poor households than an egalitarian one in which every household owns an equal share of asset; (ii) poor households tend to benefit more under DMI than CMI (constant marginal impatience) from positive shocks; (iii) inequality exhibits a sharp inverted-U shape as more people become rich, which should be good news for developing countries in catching up; and (iv) a tax on capital income reduces poor households’ income when the fraction of the rich is sufficiently small. We also examine immigration and discuss capital mobility.

Technical Details

RePEc Handle
repec:eee:mateco:v:91:y:2020:i:c:p:99-110
Journal Field
Theory
Author Count
2
Added to Database
2026-01-29