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Humanities & Social Sciences / Economic theory |
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Papers 【 display / non-display 】
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A Schumpeterian Exploration of Gini and Top/Bottom Income Shares Reviewed
Tetsugen Haruyama
Macroeconomic Dynamics 29 ( e49 ) 2024.10
Publisher：Cambridge University Press (CUP)
Abstract
Data show that an increase in the Gini coefficient is associated with a falling bottom $p_{B}$ % income share and an increasing top $p_{T}$ % income share where, for example $p_{B}$ = 40 and $p_{T}$ = 1. This relationship, which we call the $X$ inequality relationship, is pervasive in the sense that it is observed in many countries, including the US, the UK, France and others. The purpose of this paper is (i) to construct a Schumpeterian growth model to explain the relationship, and (ii) to identify/quantify factors behind it via calibration of the US economy. Our model gives rise to a double-Pareto distribution of income as a result of entrant and incumbent innovations. Its advantage is that it allows us to develop iso-Gini loci and iso-income share schedules in a tractable way. Using a double-Pareto distribution as an approximation of an underlying income distribution, calibration analysis reveals that a declining business dynamism and fiscal policy changes in the past decades played a significant role in generating the $X$ inequality relationship in the US. -
On Demand Shocks and Supply Shocks: State-Space Analysis of AD-AS Model
Journal of economics and business administration 227 ( 5 ) 2023.9
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On Entrant and Incumbent Innovations
224 ( 5 ) 1 - 12 2021.11
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Innovators and imitators in a world economy Reviewed
Tetsugen Haruyama, Ken-ichi Hashimoto
JOURNAL OF ECONOMICS 130 ( 2 ) 157 - 186 2020.7
Books and Other Publications 【 display / non-display 】
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経済学の歩き方
神戸大学経済経営学会 編集委員会（ Role： Contributor , 2.4 Pythonによるマクロ経済分析）
神戸大学経済経営学会 2023.3
Review Papers (Misc) 【 display / non-display 】
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A Schumpeterian Microfoundation of the Geometric Brownian Motion of Firm Size and Zipf’s Law
2024.5
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Pythonのすすめ
春山鉄源
経済学・経営学学習のために 前期号 17 - 26 2021
Publisher：神戸大学経済経営学会
Presentations 【 display / non-display 】
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A Shumpeterian Microfoundation of the Geometric Brownian Motion of Firm Size and Zipf's Law
2025.6
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A Schumpeterian Exploration of Gini and Top/Bottom Income Shares Invited
Tetsugen HARUYAMA
BK21 Thursday Seminar, Sungkyunkwan University 2024.9
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A Shumpeterian Microfoundation of the Geometric Brownian Motion of Firm Size and Zipf's Law
Tetsugen HARUYAMA
Singapore Economic Review Conference 2024
Event date： 2024.7 - 2024.8
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A Schumpeterian Exploration of Gini and Top/Bottom Income Shares
Tetsugen Haruyama
2023 Symposium on Economics and Finance in the Asia-Pacific
Event date： 2023.11
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A Schumpeterian Exploration of Gini and Top/Bottom Income Shares
2023.7 Econometric Society
Event date： 2023.7
Works 【 display / non-display 】
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春山鉄源
2021.4
Work type：Educational material
中級レベルよりも一歩進んだマクロ経済学をPythonで学ぶサイト。
Grant-in-Aid for Scientific Research 【 display / non-display 】
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プログラミングと経済学の教育効果について
2024.4 - 2028.3
JSPS Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(C)
春山 鉄源
Academic Activities 【 display / non-display 】
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インスブルック大学 博士論文審査員 International contribution
Role(s)： Review, evaluation
（ オーストリア ） 2023.5
Type：Scientific advice/Review
Hak Ping Yeung氏の博士論文"China's Belt and Road Initiative and Its Impact on Host Countries: Empirical Evidence for Instibutional Quality, Economic Complexity and Life Expectancy"の審査員
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Asian Meeting of Econometric Society, Empirical Macroeconomics
Role(s)： Panel moderator, session chair, etc.
Econometric Society 2021.6
Type：Academic society, research group, etc.