Two types of adjustment cost specifications coexist in macroeconomic models with investment: intertemporal adjustment costs which involve a nonlinear substitution between capital and investment in capital accumulation, and multisectoral costs which are captured by a nonlinear transformation...

Empirical evidence - including the current global crisis - suggests that shocks from advanced countries often have a disproportionate effect on developing economies. Can this account for the fact that aggregate fluctuations are larger and more persistent in the latter than in the former...

Cet article introduit un numéro spécial présentant la totalité des aspects de la nouvelle macroéconomie dynamique. Il est divisé en trois parties : la spécification des modèles DSGE, les méthodes de simulation, d'estimation et de test des modèles DSGE, les applications des modèles DSGE.