【主题】Technology Driven Market Concentration through Idea Allocation
【报告人】马越原（助理教授，美国加州大学圣巴巴拉分校）
【时间】2024年6月13日周四10:00-11:30
【地点】高等研究院楼232会议室
【语言】英文
【主持人】曹林谊助理教授
【摘要】Using a newly created measure of technological novelty, this paper identifies periods with and without technology breakthroughs from the 1980s to the 2020s in the US. It is found that market concentration decreases at the advent of revolutionary technologies. We establish a theory addressing inventors’ decisions to establish new firms or join incumbents of selected sizes, yielding two key predictions: (1) A higher share of inventors opt for new firms during periods of heightened technology novelty. (2). There is positive assortative matching between idea quality and firm size if inventors join incumbents. Both predictions align with empirical findings and collectively contribute to a reduction in market concentration when groundbreaking technologies occur. Quantitative analysis shows the overall slowdown in technological breakthroughs can explain 47.4% of the rising trend in market concentration and the correlation between the model-generated and the actual detrended market concentration is 0.932.
【报告人简介】Yueyuan Ma is an Assistant Professor of Economics at the University of California, Santa Barbara. Her research interests encompass macroeconomics, economic growth, innovation, trade, and labor economics. Presently, She is engaged in two primary areas of study: 1. investigating the production and dissemination of knowledge and goods, exploring their interconnections and their effects on economic growth, market structure, and household welfare. 2. exploring entrepreneurship, business formation, and firm dynamics with the aim of fostering a deeper understanding of the relationship between households and firms.
