The marketplace, along with its price system, is the single most important institution in a western-style free enterprise economy. The ability of prices to adjust to changes in supply and demand conditions enables the market to function efficiently and lies behind the magical invisible hand mechanism. To the behaviour of prices and in particular to the ability of prices to adjust to changes in ...

What are the consequences for monetary policy design implied by the fact that price setting and investment takes typically place simultaneously at the …rm level? To address this question we analyze simple (constrained) optimal interest rate rules in the context of a dynamic New Keynesian model featuring …rm-speci…c capital accumulation as well as sticky prices and wages à la Calvo. We make the ...

What are the effects of financial market imperfections on the fluctuations in unemployment and vacancies in the labor market? Standard DSGE models are silent about this since they have not modeled unemployment directly. In this paper I augment a standard monetary DSGE model with explicit financial and labor market frictions. The financial frictions are modeled as Bernanke, Gertler and Gilchrist...

The New Keynesian Phillips Curve is at the center of two raging empirical debates. First, how can purely forward looking pricing account for the observed persistence in aggregate inflation. Second, price-setting responds to movements in marginal costs, which should therefore be the driving force to observed inflation dynamics. This is not always the case in typical estimations. In this paper, w...

This paper analyzes the implications of a balanced-budget "scal policy rule for pricelevel determination in a cash-in-advance economy under three alternative monetary policy regimes. It shows that the price level is indeterminate under a nominal interest rate peg and determinate under a money growth rate peg. Under a feedback rule that sets the nominal interest rate as a non-negative and non-de...

This paper uses a New Keynesian model with banks and deposits, calibrated to match the US economy, to study the macroeconomic effects of policies that pay interest on reserves. While their effects on output and inflation are small, these policies require important adjustments in the way that the monetary authority manages the supply of reserves, as liquidity effects vanish and households’ portf...