The underlying stochastic processes that drive returns in several emerging bond and stock markets are investigated using the pure diffusion, the jump diffusion, the ARCH pure diffusion, and the ARCH jump diffusion models. The results indicate that jump diffusion models fit the data better than...

Many emerging markets have experienced significant changes in government policies and capital market reforms. These changes may lead to changes in their return-generating processes. Based on Markov-switching models, this paper investigates whether there is more than one regime in the...