I use uniquely comprehensive data on financial news events to test four predictions from an asymmetric information model of a firm's stock price. Certain investors trade on information before it becomes public; then, public news levels the playing field for other investors, increasing their willingness to accommodate a persistent liquidity shock. Empirically, I measure public information using firms' stock returns on news days in the Dow Jones archive. I find four patterns in postnews returns and trading volume that are consistent with the asymmetric information model's predictions. Some evidence is, moreover, inconsistent with alternative theories in which traders interpret news differently for rational or behavioral reasons.

Abstract Knowledge spillovers are known to generate positive benefits for entrepreneurs, but may come at the expense of knowledge creation by the incumbent firms which generate them. This article develops a predator–prey model of knowledge spillovers which captures the interdependence between idea‐creating incumbents and knowledge spillover‐appropriating entrepreneurs. The values of the model's parameters determine whether these two populations of firms settle down in a stable equilibrium; cycle over time with entrepreneurs doing well when incumbents do badly and vice‐versa; or drive each other to extinction. This sheds light on disparate industry life cycle patterns observed in previous research and generates some novel insights relating to public policy. In particular, the model suggests that governments ought to adopt a dynamic policy stance, initially implementing policies which favor incumbents before shifting their intervention efforts toward encouraging entrepreneurs. Copyright © 2010 Strategic Management Society.

ABSTRACT: This study examines whether the market reacts more strongly to earnings forecast revisions when financial analysts supplement their earnings forecasts with sales forecasts. I find that earnings forecast revisions supplemented with sales forecast revisions have a greater impact on security prices than do stand-alone earnings forecast revisions, controlling for the incremental information content in sales forecasts. Supplemented earnings forecasts are more accurate ex post, controlling for other individual analyst characteristics. Results are robust to controlling for earnings persistence and time effects. Taken as a whole, financial analysts are more likely to supplement their earnings forecasts with sales forecasts when they have better information. Supplementary sales forecasts appear to lend credibility to earnings forecasts because financial analysts provide sales forecasts when they are more informed.

[I use uniquely comprehensive data on financial news events to test four predictions from an asymmetric information model of a firm's stock price. Certain investors trade on information before it becomes public; then, public news levels the playing field for other investors, increasing their willingness to accommodate a persistent liquidity shock. Empirically, I measure public information using firms' stock returns on news days in the Dow Jones archive. I find four patterns in postnews returns and trading volume that are consistent with the asymmetric information model's predictions. Some evidence is, moreover, inconsistent with alternative theories in which traders interpret news differently for rational or behavioral reasons.]

This paper examines the performance of trend-following trading strategies in commodity futures markets using a monthly dataset spanning 48years and 28 markets. We find that all parameterizations of the dual moving average crossover and channel strategies that we implement yield positive mean excess returns net of transactions costs in at least 22 of the 28 markets. When we pool our results across markets, we show that all of the trading rules earn hugely significant positive returns that prevail over most subperiods of the data as well. These results are robust with respect to the set of commodities the trading rules are implemented with, distributional assumptions, data-mining adjustments and transactions costs, and help resolve divergent evidence in the extant literature regarding the performance of momentum and pure trend-following strategies that is otherwise difficult to explain.

Information technology executives strive to align the actions of end users with the desired security posture of management and of the firm through persuasive communication. In many cases, some element of fear is incorporated within these communications. However, within the context of computer security and information assurance, it is not yet clear how these fear-inducing arguments, known as fear appeals, will ultimately impact the actions of end users. The purpose of this study is to investigate the influence of fear appeals on the compliance of end users with recommendations to enact specific individual computer security actions toward the mitigation of threats. An examination was performed that culminated in the development and testing of a conceptual model representing an infusion of technology adoption and fear appeal theories. Results of the study suggest that fear appeals do impact end user behavioral intentions to comply with recommended individual acts of security, but the impact is not uniform across all end users. It is determined in part by perceptions of self-efficacy, response efficacy, threat severity, and social influence. The findings of this research contribute to information systems security research, human–computer interaction, and organizational communication by revealing a new paradigm in which IT users form perceptions of the technology, not on the basis of performance gains, but on the basis of utility for threat mitigation.

[Panel data on corporate ownership in thirty-four countries between 1995 and 2006 reveal that newly public firms have concentrated ownership regardless of the level of investor protection. After listing, firms in countries with strong investor protection are more likely to experience decreases in ownership concentration; these decreases occur in response to growth opportunities, and they are associated with new share issuance. We conclude that ownership concentration falls after listing in countries with strong investor protection, because firms in these countries continue to raise capital and grow, diluting blockholders as a consequence.]

[We examine how residents of the United States allocate their stock portfolios internationally. We find that a large U.S. Foreign Direct Investment (FDI) position in a destination country in 1990 is associated with a relatively large stock portfolio position in that country in the 2001-2006 period. Moreover, a change in the U.S. FDI position from 1980 to 1990 helps predict the change in the U.S. Foreign Portfolio Investment position from 1994 to 2006. These results are rationalized by Van Nieuwerburgh and Veldkamp's (2009) equilibrium model of learning and portfolio choice under an information processing constraint. FDI establishes marginal differences in the endowments of information about different countries, which later translate into differences in stock portfolio holdings. We control for cross-country differences in capital controls, proximity along different dimensions, corporate governance, and economic and capital market development. Our results also hold for the G6 countries collectively.]

Panel data on corporate ownership in thirty-four countries between 1995 and 2006 reveal that newly public firms have concentrated ownership regardless of the level of investor protection. After listing, firms in countries with strong investor protection are more likely to experience decreases in ownership concentration; these decreases occur in response to growth opportunities, and they are associated with new share issuance. We conclude that ownership concentration falls after listing in countries with strong investor protection, because firms in these countries continue to raise capital and grow, diluting blockholders as a consequence.

In order to gain a better empirical understanding of the international financial implications of currency movements, we construct a database of international currency exposures for a large panel of countries over 1990-2004. We show that trade-weighted exchange rate indices are insufficient to understand the financial impact of currency movements and that our currency measures have high explanatory power for the valuation term in net foreign asset dynamics. Exchange rate valuation shocks are sizable, not quickly reversed, and may entail substantial wealth redistributions. Further, we show that many developing countries have substantially reduced their negative foreign currency positions over the last decade. (F31, F32, G15)