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Working Paper
Very Simple Markov-Perfect Industry Dynamics: Empirics
This paper develops an econometric model of firm entry, competition, and exit in oligopolistic markets. The model has an essentially unique symmetric Markov-perfect equilibrium, which can be computed very quickly. We show that its primitives are identified from market-level data on the number of active firms and demand shifters, and we implement a nested fixed point procedure for its estimation. Estimates from County Business Patterns data on U.S. local cinema markets point to tough local competition. Sunk costs make the industry's transition following a permanent demand shock last 10 to 15 ...
Journal Article
Consumption-based macroeconomic forecasting
The authors build a small-scale econometric model based on the permanent income theory of consumption and balanced economic growth in order to study the influence of permanent and transitory factors on the level of economic activity.
Working Paper
Discretion Rather than Rules: Equilibrium Uniqueness and Forward Guidance with Inconsistent Optimal Plans
New Keynesian economies with active interest rate rules gain equilibrium determinacy from the central bank?s incredible off-equilibrium-path promises (Cochrane, 2011). We suppose instead that the central bank sets interest rate paths and occasionally has the discretion to change them. Private agents taking future central bank actions and their own best responses to them as given reduces the scope for self-fulfilling prophecies. With empirically-reasonable frequencies of central-bank reoptimization, the monetary-policy game has a unique Markov-perfect equilibrium wherein forward guidance ...
Working Paper
Competition in large markets
This paper develops a simple and robust implication of free entry followed by competition without substantial strategic interactions: Increasing the number of consumers leaves the distributions of producers' prices and other choices unchanged. In many models featuring non-trivial strategic considerations, producers' prices fall as their numbers increase. Hence, examining the relationship between market size and producers' actions provides a nonparametric tool for empirically discriminating between these distinct approaches to competition. To illustrate its application, I examine observations ...
Journal Article
Creative destruction in local markets
This article uses a panel of Texas restaurants' and bars' alcohol to measure the pace of creative destruction--the ongoing replacement of unproductive competitors with the new firms--and it investigates whether producers in more concentrated markets might use their market power to stabilize the industry structure. The authors find the opposite to be true: Local markets with more concentrated alcohol sales display more creative destruction.
Working Paper
Open Mouth Operations
We examine the standard New Keynesian economy?s Ramsey problem written in terms of instrument settings instead of allocations. Its standard formulation makes two instruments available: the path of current and future interest rates, and an ?open mouth operation? which selects one of the many equilibria consistent with the chosen interest rates. Removing the open mouth operation by imposing a finite commitment horizon yields pathological policy advice that relies on the model's forward guidance puzzle.
Working Paper
Macroeconomic effects of Federal Reserve forward guidance
A large output gap accompanied by stable inflation close to its target calls for further monetary accommodation, but the zero lower bound on interest rates has robbed the Federal Open Market Committee (FOMC) of the usual tool for its provision. We examine how public statements of FOMC intentions?forward guidance?can substitute for lower rates at the zero bound. We distinguish between Odyssean forward guidance, which publicly commits the FOMC to a future action, and Delphic forward guidance, which merely forecasts macroeconomic performance and likely monetary policy actions. Others have shown ...
Working Paper
Technical change, diffusion, and productivity
Working Paper
Idiosyncratic risk and aggregate employment dynamics
This paper studies how producers? idiosyncratic risks affect an industry?s aggregate dynamics in an environment where certainty equivalence fails. In the model, producers can place workers in two types of jobs, organized and temporary. Workers are less productive in temporary jobs, but creating an organized job requires an irreversible investment of managerial resources. Increasing productivity risk raises the value of an unexercised option to create an organized job. Losing this option is one cost of immediate organized job creation, so an increase in its value induces substitution towards ...