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Competition and Quality: Evidence from High-Speed Railways and Airlines
Hanming Fang, Long Wang, Yang Yang, Aug 05, 2020This paper investigates whether competition spurs quality improvement using the entry of Beijing-Shanghai high-speed rail (HSR) as an exogenous increase in competition to affected flights to destination cities along the HSR line. We find that competition from the entry of HSR leads to significant reductions in the mean and variance of travel delays on the affected airline routes and that these improvements are mainly driven by reductions in departure delays and the duration of taxi-in time at the destination airport.
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, 2021We 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, 2022China 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.
Digital Distractions with Peer Influence: The Impact of Mobile App Usage on Academic and Labor Market Outcomes
Panle Jia Barwick, Siyu Chen, Chao Fu, Teng Li, Jan 08, 2025We present the first comprehensive evidence of how app usage affects academic performance and early career outcomes. App usage is contagious: a one standard deviation (around 3.5 hours per day) increase in roommates’ app usage raises an individual’s own app usage by 5.8%, with substantial heterogeneity across students. A one standard deviation increase in app usage reduces GPAs by 36.2% of a within-cohort-major standard deviation and lowers wages by 2.3%. The effect of roommates’ app usage is over half the size of an individual’s own usage effect. High-frequency GPS data reveal that high app usage crowds out time in study halls and increases late arrivals at and absences from lectures.
Finance Leases: A Hidden Channel of China’s Shadow Banking System
Jeffrey (Jinfan) Chang, Ting Yang, Yanping Shi, Nov 11, 2020We find that banks use their affiliated leasing firms to provide credit to constrained clients in order to circumvent the government’s targeted monetary tightening policy, which offsets the expected decline in traditional bank loans in overcapacity industries and hampers the effectiveness of the monetary policy. Although this regulatory arbitrage may cause systemic risk at the macro level, bank-affiliated leasing firms...
