Perron and Rodríguez (2003) claimed that their procedure to detect for additive outliers (Tau-d) is powerful even when we have departures from the unit root case. In this note, we use Monte-Carlo simulations to show that Tau-d is powerful when we have ARFIMA(p; d; q) errors. Using simulations,...

La economía peruana ha venido creciendo sostenidamente en los últimos 15 años. Verificar si los departamentos (o regiones) han logrado un proceso de convergencia ya sea hacia un solo estado estacionario o a su propio estado estacionario sería equivalente a verificar un proceso de inclusión...

This study is one of the …rst to utilize the SV model to model Peruvian …nancial series, as well as estimating and comparing with GARCH models with normal and t-student errors. The analysis in this study corresponds to Perus stock market and exchange rate returns. The importance of this...

In this study, we investigate the long term dependence or long memory present in the volatility of the stock market returns of Peru, Brazil, Mexico, Chile, Argentina, and the S&P500. We start analyzing the form of the autocorrelation function (ACF) and the estimated spectral density. Moreover,...

Though the econometrics literature on this area is extensive, in Peru few studies have been dedicated to the analysis of Önancial returns in general and volatility in particular. As part of an empirical research agenda suggested by Humala and RodrÌguez (2013), this paper represents one of the...

Using daily observations of the index and stock market returns for the Peruvian case from January 3, 1990 to May 31, 2013, this paper models the distribution of daily loss probability, estimates maximum quantiles and tail probabilities of this distribution, and models the extremes through a...

This note analyzes the empirical size of the augmented Dickey and Fuller (ADF) statistic proposed by Perron and Rodríguez (2003) when the errors are fractional. This ADF is based on a searching procedure for additive outliers based on first-differences of the data named td. Simulations show...

In this paper, we analyze the impact of several labor reforms in Spain on its equilibrium unemployment rate. To this end, we analyzed the behavior of the observed unemployment rate in Spain during the 1976-2012 period, thereby assessing whether that rate is better characterized as a hysteresis...