Many corporate executives believe blockchain technology is broadly scalable and will achieve mainstream adoption, yet there is little evidence of significant shareholder value creation associated with corporate adoption of blockchain technology. We collect a broad sample of firms that invest in blockchain technology and examine the stock price reaction to the “first” public revelation of this news. Initial reac- tions average close to +13% and are followed by reversals over the next 3 months. However, we report a striking differ- ence based on the credibility of the investment. Blockchain investments that are at an advanced stage or are con- firmed in subsequent financial statements are associated with higher initial reactions and little or no reversal. The results suggest that credible corporate strategies involving blockchain technology are viewed favorably by investors.

Although sentiment-driven investors are believed to play an important role in the Chinese stock market, there are very few sentiment measures at the individual stock level based on their trading activities. Due to the unique “T+1” trading rule in China, the low overnight return of stocks reflects intensified trading activities from short-term speculators. Therefore, we construct a sentiment measure for individual stocks based on the close-to-open return (CTO). We find that CTO positively predicts future stock returns in the cross-section, supporting the idea that low CTO, as an indicator of sentiment-driven excess demand, leads to lower subsequent returns. This finding is not driven by firm-specific news and alternative explanations based on risks, investor attention, or investor underreaction. Further analyses suggest that investors overpay for low-CTO stocks because of their inherent preference for this type of stock.

We document a speculation channel through which house market booms negatively affect entrepreneurship. To address endogeneity concerns, we exploit plausibly exogenous variation in house prices generated by staggered and unintended policy spillovers in China. We find house market speculation triggered by house booms crowds out entrepreneurship. Reduced labor supply, reduced capital supply, and heightened entry costs do not appear to explain our main findings. The negative effect exhibits in the OECD countries as well. Our paper complements the well-documented collateral channel by offering novel evidence on a previously under-explored adverse consequence of house market booms – their hindrance to entrepreneurship.

This paper examines whether China’s switch back and forth from fixed to floating exchange rates in 2005 and 2008 changed the contribution to stock price discovery by foreign and domestic investors. During that time, mainland investors could only trade the RMB-denominated A-shares in the domestic Shanghai and Shenzhen markets, while the dual-listed HKD-denominated H-shares were available only to overseas investors. Using intraday data on overlapping trading hours, we find that the switch from a fixed rate to managed floating in July 2005 increased the H-shares’ contribution to price discovery; while the exchange rate regime reversal in July 2008 allowed the domestic stocks to regain their dominance in information shares. These results imply that, in a market subject to restrictions on capital flows, a flexible exchange rate regime increases the propensity of investors to trade foreign-issued stocks to speculate on the RMB exchange rate, which raises overseas investors’ contribution to price discovery.

This study is the first to examine China’s crude oil options market. Using high-frequency data and three different price discovery measures, we conduct a rigorous analysis and find that after its first 8 months of operation, China’s crude oil options market has already played an important role in price discovery. Factors such as volume, volatility, and speculation can impact its price discovery ability. We also find a unique phenomenon in China’s crude oil derivatives market, namely that speculative activity mainly occurs in the futures market and adds to the price discovery of the futures market rather than to the options

This paper investigates the volatility and turnover effects of underlying stocks associated with the introduction of warrants in China’s warrants market. We find that in a derivative market where noise traders dominate, the introduction of warrants increases the underlying stock’s volatility, which cannot be attributed to better information revelation. We also find that speculation on derivatives has a spillover effect on the underlying security. Higher volatility and turnover rate of underlying stocks are associated with higher warrants turnover, larger warrants price deviation from theoretical prices, and longer time to maturity of warrants. Additionally, we find that stocks with covered warrants have higher volatility and turnover than those with only equity warrants. Our paper provides new evidence for the impact of derivatives on underlying assets in the emerging market context.

In 2005-2006 China reformed its stock market by eliminating non-tradable shares. The regulator set general guidelines and then assigned responsibility for implementation to each company. We derive relations that should have been followed by the prices of stocks and exploit a company-level data set to compare the actual and the theoretical price reactions. We find evidence for abnormal returns both before the beginning of the reform and during the reform. Cross-sectionally, abnormal returns are associated mainly with turnover and compensation. This shows that in a speculative market, investors do not properly react to unambiguous corporate actions.

This paper proposes a path-dependent approach for estimating maximum appreciations of the renminbi expected by the market based on first-passage-time distributions. Using market data of the renminbi spot exchange rates, non-deliverable forward rates and currency option prices from 21 July 2005 (the reform of the exchange rate regime) to 28 February 2008 for model parameters, the maximum appreciations of the renminbi estimated under the proposed approach show that the market expected another large movement of the exchange rate during the 14 months after the reform. Subsequently, the few occasions of appreciations beyond the expected maximums coincided with the trade-related issues and speculations of greater momentum of appreciation allowed by the authorities. The PBoC's measures were however largely incorporated into the derivatives' prices. The proposed approach can be used to gauge the range of appreciations of the renminbi anticipated in the market and to identify any exchange rate movements beyond market expectations.

Prior to April 2005, only one third of the shares issued by exchange-listed companies in China are publicly tradable. The other two thirds, mainly owned by Chinese government agencies or government-linked enterprises, are prohibited from public trading. On April 29, 2005, the Chinese Securities Regulatory Committee announced a reform plan that aims to abolish the split-share structure by converting all non-tradable shares to be publicly tradable. We investigate the consequences of this unique event and shed light on how increase in share float affects liquidity, speculation and stock prices. Firstly, we find that tradable A-shares command a 60% price premium on average over non-tradable A-shares and this price premium contains both liquidity and speculation components. Secondly, the share structure reform increases share turnover and dampens speculative trading. Relative to control firms, share turnover of restructured firms increases substantially after the reform, with the largest increase (107 %) in firms that had low liquidity and low speculative trading before the reform. In contrast. there is no increase in share turnover of firms that had high liquidity and high speculative trading. Thirdly. stock prices drop substantially on the day when the supply of tradable shares increases due to the reform. Moreover. the higher increase in the supply of tradable A-shares. the larger drop in the stock price. This indicates that the short-term demand curve is downward-sloping. Fourthly. despite the fall in stock prices. shareholder wealth increases by 15% on average. We find that the largest price drop and the smallest wealth gain occurs in firms with the highest speculative trading before the reform. which suggests that share structure reform dampens speculative trading in Chinese market. Lastly, split share reform also benefits the B-share market despite that the reform involves only A shares: B-share turnover increases after the reform and the well-known B share price discount narrows substantially .