Forward trading and adjustment costs in Cournot markets

2000 ◽  
Vol 37 (1) ◽  
pp. 177-195 ◽  
Author(s):  
Henry Thille ◽  
Margaret E. Slade
Keyword(s):  
Adjustment Costs ◽  
Forward Trading

The Micro and Macro of Managerial Beliefs

2020 ◽  
Author(s):  
Jose Maria Barrero
Keyword(s):  
Rational Expectations ◽  
Asset Price ◽  
Heterogeneous Firms ◽  
Adjustment Costs ◽  
Consumer Welfare ◽  
Sales Growth ◽  
Firm Level ◽  
Managerial Decisions ◽  
Managerial Beliefs ◽  
Growth Volatility

This paper studies how biases in managerial beliefs affect managerial decisions, firm performance, and the macroeconomy. Using a new survey of US managers I establish three facts. (1) Managers are not over-optimistic: sales growth forecasts on average do not exceed realizations. (2) Managers are overprecise (overconfident): they underestimate future sales growth volatility. (3) Managers overextrapolate: their forecasts are too optimistic after positive shocks and too pessimistic after negative shocks. To quantify the implications of these facts, I estimate a dynamic general equilibrium model in which managers of heterogeneous firms use a subjective beliefs process to make forward-looking hiring decisions. Overprecision and overextrapolation lead managers to overreact to firm-level shocks and overspend on adjustment costs, destroying 2.1 percent of the typical firm’s value. Pervasive overreaction leads to excess volatility and reallocation, lowering consumer welfare by 0.5 to 2.3 percent relative to the rational expectations equilibrium. These findings suggest overreaction may amplify asset-price and business cycle fluctuations.

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