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In-Consumption Social Listening with Moment-to-Moment Unstructured Data

Qiang Zhang, Wenbo Wang, Yuxin Chen, Jan 03, 2019

Major video and live streaming platforms in China have recently introduced a live commenting feature that allows viewers to post comments in real time during video content consumption. Building on the rich live comment data, this research proposes a novel approach for in-consumption social listening to extract live consumption experience. The approach is demonstrated in the context of online movie watching...

Panda Games: Corporate Disclosure in the Eclipse of Search

Kemin Wang, Xiaoyun Yu, Bohui Zhang, Sep 26, 2018

We conduct a textual analysis and exploit an exogenous event — Google’s 2010 surprising withdrawal from the Chinese mainland — which significantly hampered domestic investors’ ability to access foreign information. Following Google’s exit, Chinese firms’ announcements concerning their foreign transactions become more bullish in comparison to similar announcements prior to the exit and to those that involve only domestic transactions. This finding suggests that firms strategically alter their disclosure behaviors when the channel to transmit information is severed.

The Two-Pillar Policy for the RMB from December 2015 to May 2017

Urban J. Jermann, Bin Wei, Vivian Yue, Aug 16, 2017

We document that since December 2015 the People’s Bank of China (PBC) has followed a “two-pillar” exchange rate policy that aims to achieve both stability and flexibility. Based on a no-arbitrage model and options price data we estimate the credibility of the policy as well as its impact on the RMB/USD exchange rate. The model was able to correctly forecast the end of the two-pillar policy in May 2017.

Leverage-Induced Fire Sales and Stock Market Crashes

Jiangze Bian, Zhiguo He, Kelly Shue, Hao Zhou, Dec 03, 2018

The authors find that margin investors heavily sell their holdings when their account-level leverage edges toward the maximum leverage limits. Stocks that are disproportionately held by accounts close to leverage limits experience high selling pressure and abnormal price declines that subsequently reverse over the next 40 trading days. Unregulated shadow-financed margin accounts contributed more to the market crash even though these shadow accounts had higher leverage limits and held a smaller fraction of market assets.

Mapping U.S.-China Technology Decoupling, Innovation, and Firm Performance

Pengfei Han, Wei Jiang, Danqing Mei, Dec 01, 2021

We develop measures for technology decoupling and dependence between the U.S. and China based on combined patent data. The first two decades of the century witnessed a steady increase in technology integration (or less decoupling), but China’s dependence on the U.S. increased (decreased) during the first (second) decade. Decoupling in a technology field predicts China’s growing dependence on U.S. technology, which, in turn, predicts less decoupling further down the road...