This paper studies the steady-state costs of inflation in a general-equilibrium model with real per capita output growth and staggered nominal price and wage contracts. Our analysis shows that trend inflation has important effects on the economy when combined with nominal contracts and real...

I construct a unified macroeconomic framework by incorporating frictional markets in a neoclassical environment. This framework is analytically tractable despite search frictions, income risks and endogenous money distributions. I use this framework to formalize a theory that the variety and the...

Most studies of optimal monetary policy under learning rely on optimality conditions derived for the case when agents have rational expectations. In this paper, we derive optimal monetary policy in an economy where the Central Bank knows, and makes active use of, the learning algorithm agents...

We study the design of optimal monetary policy (Ramsey policies) in a model with sticky prices and unionized labour markets. Collective wage bargaining and unions monopoly power tend to dampen wage fluctuations and to amplify employment fluctuations relatively to a DNK model with walrasian...

The holy grail of Keynesian theorists during much of the postwar period has been to fully microfound meaningful wage rigidity (MWR), defined by its capacity to rationally suppress wage recontracting. This paper accomplishes that longstanding goal! MWR is shown to be a necessary condition for the...

I construct a unified macroeconomic framework by incorporating frictional markets in a neoclassical environment. This framework is analytically tractable despite search frictions, income risks and endogenous money distributions. I use this framework to formalize a theory that the variety and the...

Safe asset shortages can expose the economy to liquidity traps. The nature of these traps is determined by the cyclicality of the bond premium. Self-fulfilling liquidity traps are associated with a counter-cyclical bond premium. Small issuances of government debt crowd out private debt and...

I study the effects of long-run inflation and income taxation in an economy where households face uninsurable idiosyncratic risks. I construct a tractable competitive search framework that generates dispersion of prices, income and wealth. I analytically characterize the stationary equilibrium...

We study competitive search in goods markets in a heterogeneous-agent monetary model. The model accounts for three stylized facts connecting inflation to consumption inequality, to price dispersion, and to the speed of monetary payments. With competitive search, individuals’ endogenous...

This paper proposes a theoretical monetary model to inquire as to whether the growth and decline in barter transactions between firms in Russia during the 1990s was the result of credit rationing or firms' optimal decision. The model also provides an explanation for the negative correlations...