A fundamental question in finance is whether and how removing market frictions is associated with efficiency gains. We study this question using share issue privatization in China that took place through the split share structure reform. Prior to the reform, domestic A-shares were divided into tradable and non-tradable shares with identical cash flow and voting rights. Under the reform, holders of the non-tradable shares negotiated a compensation plan with holders of the tradable shares in order to make their shares tradable. We hypothesize that efficiency gains in terms of better risk sharing play an important role in the determination of compensation. We show that the size of compensation is positively associated with both the gain in risk sharing and the price impact of more shares coming to the market after the reform, and is negatively associated with the bargaining power of holders of non-tradable shares and firm performance. Our study highlights the role of risk sharing in China’s share issue privatization.

The Chinese stock market has grown very rapidly, but is often distorted by government regulation, and this is especially true for the initial public offering market. The average underpricing of Chinese IPOs is 247 percent, the highest of any major world market. We model this extreme underpricing with a demand-supply analytical framework that captures critical institutional features of China’s primary market, and then empirically test this model using a sample of 1,397 IPOs listed on the Shanghai and Shenzhen Stock Exchanges between 1991 and 2004. The pricing of IPO shares is subject to a cap set by the government, and the supply of IPO shares allowed on the market is also set by the government through the Chinese quota system. The government regulator even controls the timing of flotation of shares onto the stock exchange--after the initial public offering is executed--and there is usually a long time lag between the IPO and the actual listing of shares for trading. A special feature of the Chinese IPO market is that the government is by far the largest issuer. In our sample, 66 percent of the IPOs in our sample are pure share issue privatizations (SIPs), in which the government sells part of its ownership in state-owned enterprises (SOEs) to the public; fully 88 percent would be considered privatizations under a more expansive definition that included state-connected owners. Insider theft of corporate assets is also a big concern of IPO subscribers in China, and IPO shares must also be discounted for significant tunneling risks. We find that insider shareholdings are a negative determinant of initial returns. We suggest that investment risks in China's primary markets are greater than in other new issues markets, and these risks partly explains the extreme levels of Chinese IPO underpricing. However, the principal cause of the this underpricing is government regulation. The supply restricting measures traditionally adopted by the Chinese regulatory authorities turn IPO shares into hot commodities, which are fiercely bid for, and this leads to corruption and a reallocation of wealth from firms and investors to politically connected individuals and groups.

A fundamental question in economics and finance is whether and how removing barriers is associated with efficiency gains. We study this question using share issue privatization in China that took place through the split share structure reform as our experimental setting. Prior to the reform, domestic Ashares are divided into tradable and non-tradable shares with identical cash flow and voting rights. Under the reform, non-tradable share holders negotiate a compensation plan with tradable share holders in order to make their shares tradable. We develop a general equilibrium model to help understand the determinants of compensation and the source of gains in the process of privatization. Our key predictions are: a) there is compensation made by the non-tradable share holders to the tradable share holders if and only if the bargaining power of the former is weaker than the bargaining power of the latter; and b) the size of the compensation is decreasing in firm performance. Our second prediction contradicts conventional wisdom that fails to account for improved risk sharing after the reform. Our empirical results are broadly consistent with our model’s predictions. We conclude that better risk sharing is an important consideration in China’s share issue privatization.