I use three non-linear econometric models to identify and analyze business cycles in the Peruvian economy for the period 1980:1-2008:4. The models are the Smooth Transition Autoregressive (STAR) model suggested by Teräsvirta (1994), the extended version of the Markov-Switching model proposed by...

Perron and Wada (2009) propose a new method of decomposition of the GDP in its trend and cycle components, which overcomes the identi.cation problems of models of unobserved components (UC) and ARIMA models and at the same time, admits non linearities and asym- metries in cycles. The method...