De. Allen et R. Prince, THE WINNER LOSER HYPOTHESIS - SOME PRELIMINARY AUSTRALIAN EVIDENCE ONTHE IMPACT OF CHANGING RISK, Applied economics letters, 2(8), 1995, pp. 280-283
The extent of the winner-loser anomaly on the Austalian equities marke
t for the period 1974-91 is examined. Documentation of the contrarian
strategy is argued as being invalid unless compensation is made for ch
anging risk premiums through time. The evidence shows a slight reversa
l for the winner portfolio based on raw returns, but risk adjusted win
ners continue to be winners and losers persist as losers although the
behaviour is not statistically significant.