Following Lawrence Harris (1989b) study of price clustering in stock prices, we examine the smae phenomenon in the forex market. The pattern of clustering in the final digit of bid/ask prices depends on the desired degree of price resolution. The selection of spreads also involves clustering,...

(The associated paper is significantly revised and new authors have contributed to it) We investigate on three exchange rate series the profitability of signals generated by the breaking of support and resistance identified and supplied by Chartists. Such profitability is assessed, and then...