Asymmetries in Volatility: An Empirical Study for the Peruvian Stock and Forex Markets

Willy Alanya () and Gabriel Rodríguez
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Willy Alanya: Banco Central de Reserva del Perú, 441-455 Santa, Rosa Street, Lima 1, Peru

Review of Pacific Basin Financial Markets and Policies (RPBFMP), 2019, vol. 22, issue 01, 1-18

Abstract: Asymmetric autoregressive conditional heteroskedasticity (EGARCH) models and asymmetric stochastic volatility (ASV) models are applied to daily data of Peruvian stock and Forex markets for the period of 5 January 1998–30 December 2011. Following the approach developed in [Omori, Y, S Chib, N Shephard and J Nakajima (2007). Stochastic volatility with leverage: Fast likelihood inference. Journal of Econometrics, 140, 425–449], Bayesian estimation tools are used with Normal and t-Student errors in both models. The results suggest the significant presence of asymmetric effects in both markets. In the stock market, negative shocks generate higher volatility than positive shocks. In the Forex market, shocks related to episodes of depreciation create higher uncertainty in comparison with episodes of appreciation. Thus, the Central Reserve Bank faces relatively major difficulties in its intention of smoothing Forex volatility in times of depreciation. The model with the best fit in both markets is the ASV model with Normal errors. The stock market returns have greater periods of volatility; however, both markets react to shocks in the economy, as they display similar patterns and have a significant correlation for the sample period studied.

Keywords: Asymmetries; EGARCH; stochastic volatility; stock returns; Forex returns; Bayesian estimation; Normal errors; t-Student’s errors (search for similar items in EconPapers)
Date: 2019
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Working Paper: Asymmetries in Volatility: An Empirical Study for the Peruvian Stock and Forex Markets (2016)
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DOI: 10.1142/S0219091519500036

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