The Nonlinear Dynamics of Output and Unemployment in the US

Filippo Altissimo and Giovanni Violante

No 2475, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: This paper studies the joint dynamics of US output and unemployment rates in a nonlinear VAR model. The nonlinearity is introduced through a feedback variable that endogenously augments the output lags of the VAR in recessionary phases. Sufficient conditions for the ergodicity of the model, potentially applying to a larger class of threshold models, are provided. The linear specification is severely rejected in favour of our threshold VAR. However, in the estimation the feedback is found to be statistically significant only on unemployment, while it transmits to output through its cross-correlation. This feedback effect from recessions generates important asymmetries in the propagation of shocks, a possible key to interpret the divergence in the measures of persistence existing in the literature. The regime-dependent persistence also explains the finding that the feedback from recession exerts a positive effect on the long-run growth rate of the economy, an empirical validation for the Schumpeterian macroeconomic theories.

Keywords: Ergodicity; Impulse response function; Long-run effect of recessions; Nonlinearity; Persistence; Threshold var (search for similar items in EconPapers)
JEL-codes: C32 E32 (search for similar items in EconPapers)
Date: 2000-06
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Journal Article: The non-linear dynamics of output and unemployment in the U.S (2001)
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