Robert Bloomfield

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Barberis, Shleifer, and Vishny (1998) construct a model in which investors use the prevalence of past trend reversals as an indicator of the likelihood of future reversals. While such " regime-shifting " beliefs are consistent with a variety of psychological theories, other contrary predictions are consistent with the same theories. We report two(More)
Using options-and press-based proxies for CEO overconfidence (Malmendier and Tate 2005a, 2005b, 2008), we find that over the 1993-2003 period, firms with overconfident CEOs have greater return volatility, invest more in innovation, obtain more patents and patent citations, and achieve greater innovative success for given research and development (R&D)(More)
This paper uses experimental asset markets to investigate the evolution of liquidity in an electronic limit order market. Our market setting includes salient features of electronic limit order markets, as well as informed traders and liquidity traders. We focus on the strategies of the traders, and how these are affected by trader type, characteristics of(More)
We use a laboratory market to investigate the behavior of noise traders and their impact on the market. Our experiment features informed traders (who possess fundamental information), liquidity traders (who have to trade for exogenous reasons), and noise traders (who do not possess fundamental information and have no exogenous reasons to trade). We find(More)
The need for policy makers to understand science and for scientists to understand policy processes is widely recognised. However, the science-policy relationship is sometimes difficult and occasionally dysfunctional; it is also increasingly visible, because it must deal with contentious issues, or itself becomes a matter of public controversy, or both. We(More)
We use a laboratory market to investigate how the ability to hide orders affects traders' strategies and market outcomes. We examine three market structures: Visible markets in which all orders must be displayed, Iceberg markets in which a minimum size must be displayed, and Hidden markets in which orders can be displayed, partially displayed, or completely(More)