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Journal Article
Firm volatility and credit: a macroeconomic analysis
This paper examines a tractable real business cycle model with idiosyncratic productivity shocks and binding credit constraints on entrepreneurs. The model shows how firm volatility increases in combination with credit market development. It further generates the observed comovement of credit and firm volatility with output at business cycle frequencies in response to aggregate productivity shocks.
Working Paper
Endogenous credit limits with small default costs
We analyze an exchange economy of unsecured credit where borrowers have the option to declare bankruptcy in which case they are temporarily excluded from financial markets. Endogenous credit limits are imposed that are just tight enough to prevent default. Economies with temporary exclusion differ from their permanent exclusion counterparts in two important properties. If households are extremely patient, then the first?best allocation is an equilibrium in the latter economies but not necessarily in the former. In addition, temporary exclusion permits multiple stationary equilibria, with both ...
Working Paper
Capital misallocation and aggregate factor productivity
We propose a sectoral?shift theory of aggregate factor productivity for a class of economies with AK technologies, limited loan enforcement, a constant production possibilities frontier, and finitely many sectors producing the same good. Both the growth rate and total factor productivity in these economies respond to random and persistent endogenous fluctuations in the sectoral distribution of physical capital which, in turn, responds to persistent and reversible exogenous shifts in relative sector productivities. Surplus capital from less productive sectors is lent to more productive ones in ...
Working Paper
Capital misallocation and aggregate factor productivity
We propose a sectoral?shift theory of aggregate factor productivity for a class of economies with AK technologies, limited loan enforcement, and a constant production possibilities frontier. Both the growth rate and TFP respond to random and persistent endogenous fluctuations in the sectoral distribution of physical capital which, in turn, responds to reversible exogenous shifts in relative sector productivities. Surplus capital from less productive sectors is lent to more productive ones in the form of secured collateral loans, as in Kiyotaki?Moore (1997), and also as unsecured reputational ...
Working Paper
Self-fulfilling credit cycles
This paper argues that self-fulfilling beliefs in credit conditions can generate endoge- nously persistent business cycle dynamics. We develop a tractable dynamic general equi- librium model in which heterogeneous firms face idiosyncratic productivity shocks. Capital from less productive firms is lent to more productive ones in the form of credit secured by collateral and also as unsecured credit based on reputation. A dynamic complemen- tarity between current and future credit constraints permits uncorrelated sunspot shocks to trigger persistent aggregate fluctuations in debt, factor ...
Working Paper
Self-Fulfilling Credit Cycles
In U.S. data 1981?2012, unsecured firm credit moves procyclically and tends to lead GDP, while secured firm credit is acyclical; similarly, shocks to unsecured firm credit explain a far larger fraction of output fluctuations than shocks to secured credit. In this paper we develop a tractable dynamic general equilibrium model in which unsecured firm credit arises from self-enforcing borrowing constraints, preventing an efficient capital allocation among heterogeneous firms. Unsecured credit rests on the value that borrowers attach to a good credit reputation which is a forward-looking ...