Kolb, Robert W; Rodriguez, Ricardo J - In: Journal of Financial Research 13 (1990) 4, pp. 279-83
The stationarity of the beta distribution for 1926-1985 is rejected for the entire period as a single sample. However, results for pairs of five-year estimation periods are more consistent with stationarity. Over all possible pairs of five-year periods, stationarity in the pair-wise tests is...
