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Working Paper
Hedge fund holdings and stock market efficiency
We examine the relation between changes in hedge fund stock holdings and measures of informational efficiency of equity prices derived from transactions data, and find that, on average, increased hedge fund ownership leads to significant improvements in the informational efficiency of equity prices. The contribution of hedge funds to price efficiency is greater than the contributions of other types of institutional investors, such as mutual funds or banks. However, stocks held by hedge funds experienced extreme declines in price efficiency during liquidity crises, most notably in the last ...
Journal Article
Credit risk transfer, informed markets, and securitization
Mortgage-backed securities (MBS) funded the U.S. housing bubble, while the ensuing bust resulted in systemic risk and the global financial crisis of 2007-09. In the run-up to the crisis, MBS pricing failed to reveal the growing credit risk. This article draws lessons from this failure that could inform the use of credit risk transfers (CRTs) to price credit risk. The author concludes that the CRT market, as currently constituted, could have appropriately priced and revealed credit risk during the bubble years because it met three key requirements: 1) transparency, through the full provision ...
Report
The Microstructure of China's Government Bond Market
Although China now has one of the largest government bond markets in the world, the market has received relatively little attention and analysis. We describe the history and structure of the market and assess its functioning. We find that trading in individual bonds was historically sparse but has increased markedly in recent years. We find also that certain announcements of macroeconomic news, such as China?s producer price index (PPI) and manufacturing purchasing managers? index (PMI), have significant effects on yields, even when such yields are measured at a daily level. Despite the ...