This paper looks at whether sticky-price New Keynesian models with microfounded inertia can usefully describe US data. We estimate a range of models, considering specifications with either internal or external consumption habits, specifications containing Taylor-type rules or an optimal discretionary rule, and specifications where inflation is driven by movements in either the gap or real margi...

The canonical inflation specification in sticky-price rational expectations models (the new-Keynesian Phillips curve) is often criticized on the grounds that it fails to account for the dependence of inflation on its own lags. In response, many recent studies have employed a “hybrid” sticky-price specification in which inflation depends on a weighted average of lagged and expected future values...

In this paper, a mathematical model containing two-parameter Mittag-Leffler function in its definition is proposed to be used for the first time to fit the relation between unemployment rate and inflation rate, also known as the Phillips curve. The Phillips curve is in the literature often represented by an exponential-like shape. On the other hand, Phillips in his fundamental paper used a powe...

In this chapter, the focus shifts away models with ‡exible wages and prices to models of sticky wages and prices. We begin this chapter with a simple example of a model with nominal wage rigidities that last for one period. We then review models that account for the observation that prices and wages may take several periods to adjust to changes in macroeconomic conditions. Time-dependent and st...

The relationship between in‡ation and the output gap can be modeled simply and e¤ectively by including an unobserved random walk component in the model. The dynamic properties match the stylized facts and the random walk component satis…es the properties normally required for core in‡ation. The model may be generalized to as to include a term for the expectation of next period’s output, but it ...

This paper compares three reduced-form models of heterogeneity in survey inflation expectations. On the one hand, we specify two models of forecasting inflation based on limited information flows of the type developed in Mankiw and Reis [2002. Sticky information versus sticky prices: a proposal to replace the new Keynesian Phillips curve. Quarterly Journal of Economics 117(4), 1295–1328]. We pr...

Sector-level Phillips curves are estimated in French data. There is considerable heterogeneity across sectors, with vastly different estimates of the backward looking component of inflation and the duration of nominal rigidities. A multi-sector model of inflation dynamics is calibrated on the basis of these sectoral estimates. Aggregate inflation, simulated on the basis of heterogeneous sectors...

the purpose of the paper is to survey and discuss inflation targeting in framework of monetary policy rules. this study design an optimal economy model for iran which compare different cases of domestic and cpi inflation targeting, strict and flexible inflation targeting.in relation to this, the optimal monetary policy rule was designed using three constraints neo-keynesian phillips curve, aggr...