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In portfolio risk minimization, the inverse covariance matrix prescribes the hedge trades in which a stock is hedged by all the other stocks in the portfolio. In practice with finite samples, however, multicollinearity makes the hedge trades too unstable and unreliable. By shrinking trade sizes...
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A regime shift in the inflation process is the collective outcome of shifts in individual agents' rational expectations resulting from an important policy initiative. Taking this view, we find decisive evidence of a shift in the inflation process during the Volcker experiment reflecting the...
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We find that between 20 and 25 percent of the negative covariance between excess returns and inflation is explained by shocks to monetary policy variables. The finding is robust to changes in the monetary policy rule that have occurred during the 1966-2000 period. The result contradicts the...
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When a firm exercises discretion to disclose or withhold information (strategic disclosure), risk-averse investors command higher expected returns when expected cash flows decrease, producing a negative correlation between these expectations. Moreover, stock returns exhibit stronger reversal...
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When a firm exercises discretion to disclose or withhold information (strategic disclosure), risk-averse investors command higher expected returns when expected cash flows decrease, producing a negative correlation between these expectations. Moreover, stock returns exhibit stronger reversal...
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