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Drive Down the Cost: Learning by Doing and Government Policies in the Global EV Battery Industry

Panle Jia Barwick, Hyuk-soo Kwon, Shanjun Li, Nahim Bin Zahur, Apr 16, 2025

Electric vehicle (EV) battery costs have fallen over 90% in the last decade. This study examines how learning-by-doing (LBD) drives this decline and interacts with government policies such as consumer EV subsidies and local content requirements. Leveraging rich data on EV models and battery suppliers from 13 countries with largest EV sales that account for 95% of global EV sales, we develop a structural model of the EV industry that incorporates consumer choices and pricing strategies by EV producers and battery suppliers....

Special Deals from Special Investors: The Rise of State-Connected Private Owners in China

Chong-En Bai, Chang-Tai Hsieh, Michael Zheng Song, Xin Wang, Feb 10, 2021

We document a hierarchy of private owners connected to the state through equity investment and a rapid expansion of this hierarchy over the past two decades. We build a model to show how the effects of a special deal from a state investor can be transmitted and amplified through the hierarchy. Our estimation suggests that the expansion in the span of state-connected private owners may have increased aggregate output of the private sector by 4.2% a year between 2000 and 2019.

Innovation versus imitation: Where all that Chinese R&D is going

Michael König, Zheng (Michael) Song, Kjetil Storesletten, Fabrizio Zilibotti, Jan 26, 2022

China is aiming to become a technological innovation powerhouse by 2050, with Premier Li Keqiang recently announcing an increase in R&D investments by 7% for the next five years. But greater R&D investment is no guarantee of success. This column examines the effects of R&D investments by Chinese firms on aggregate productivity and growth.

Trade Policy Uncertainty and Firm Innovation

Qing Liu, Hong Ma, May 12, 2021

This study proposes a novel channel through which trade liberalization may induce innovation through the reduction of trade policy uncertainties (TPU) in destination markets. To verify this link, we utilize the significant reduction of TPU engendered by China's accession to the World Trade Organization (WTO) in 2001 as a quasi-natural experiment. We find that reduction in TPU significantly encourages firms' patent applications and that firms' innovation responses to TPU reduction vary by productivity, ownership, exporting status, and the irreversibility of investment.

Who Captures the Power of Pen?

Jiaxing You, Bohui Zhang, Le Zhang, Oct 17, 2018

We study how government control affects the roles of the media as an information intermediary and a corporate monitor. Comparing a large sample of news articles written by state-controlled and market-oriented Chinese media, we find that articles by the market-oriented media are more critical, more accurate, more comprehensive, and timelier than those by the state-controlled media. Moreover, only articles by the market-oriented media have a significant corporate governance impact. Subsample analyses, interviews with journalists, and a survey of university students suggest that the market-oriented media’s superior effects are explained by their operating efficiency and independence.