Caporale, Guglielmo Maria; Gil-Alaña, Luis A.; Poza, Carlos - 2021
prices and bond yields using fractional integration techniques. The model is estimated first over the period January 1966 … pandemic period. We find that the unit root hypothesis cannot be rejected for stock prices while for bond yields the results … differ depending on the maturity date and the specification of the error term. In general, bond yields appear to be more …