R. Macdonald et Iw. Marsh, CURRENCY FORECASTERS ARE HETEROGENEOUS - CONFIRMATION AND CONSEQUENCES, Journal of international money and finance, 15(5), 1996, pp. 665-685
Using a disaggregated international survey database we demonstrate tha
t foreign exchange forecasters hold heterogeneous expectations. We fin
d that a major cause of these differences of opinion is the idiosyncra
tic interpretation of widely available information, and that this hete
rogeneity translates into economically meaningful differences in forec
ast accuracy. Finally, we show that such disagreements are key variabl
es in determining market trading volume. Copyright (C) 1996 Elsevier S
cience Ltd