ヤマダ　トモアキ   Yamada Tomoaki   山田　知明    所属   明治大学  商学部    職種   専任教授
言語種別	英語
発行・発表の年月	2017/06
形態種別	学術雑誌
標題	Effects of Monetary Policy Shocks on Inequality in Japan
執筆形態	共著(筆頭者以外)
掲載誌名	BIS Working Paper
掲載区分	国内
出版社・発行元	Bank for International Settlements
巻・号・頁	642
著者・共著者	Masayuki Inui, Nao Sudo and Tomoaki Yamada
概要	Impacts of monetary easing on inequality have recently attracted increasing attention. In this paper, we use the micro-level data of Japanese households to study the distributional effects of monetary policy. We construct quarterly series of income and consumption inequality measures from 1981 to 2008, and estimate their response to a monetary policy shock. We do find that monetary policy shocks do not have statistically significant impacts on inequalities across Japanese households in a stable manner. We find evidence, when considering inequality across households whose head is employed, an expansionary monetary policy shock increased income inequality through a rise in earnings inequality, in the period before the 2000s. Such procyclical responses are, however, scarcely observed when the current data is included in the sample period, or when earnings inequality across all households is considered. We also find that, transmission of income inequality to consumption inequality is minor even during the period when procyclicality of income inequality was pronounced. Using a two-sector dynamic general equilibrium model with attached labor inputs, we show that labor market flexibility is the central to the dynamics of income inequality after monetary policy shocks. We also use the micro-level data of households' balance sheet and show that distributions of households' financial assets and liabilities do not play a significant role in the distributional effects of monetary policy.