Evidence from psychology shows that people tend to be overconfident in two dimensions: they underestimate uncertainty and overestimate their own abilities. This paper provides evidence that foreign exchange dealers are likewise overconfident in both dimensions.We study overconfidence because...

This paper makes three contributions to our understanding of the price discovery process in currency markets. First, it provides evidence that this process cannot be the familiar one based on adverse selection and customer spreads, since such spreads are inversely related to a trade's likely...

This paper identifies a specific set of agents as noise traders in U.S. equity markets, and examines their effects on returns. These agents, who speculate using the quot;head-and-shouldersquot; chart pattern, are shown to qualify as noise traders because (1) trading volume is exceptionally high...

This paper provides a microstructural explanation for the success of two familiar predictions from technical analysis: 1) trends tend to be reversed at predictable support and resistance levels, and 2) trends gain momentum once predictable support and resistance levels are crossed. The...

In this paper, I provide evidence that currency stop-loss orders contribute to rapid, self-reinforcing price movements, or price cascades. Stop-loss orders, which instruct a dealer to buy (sell) a certain amount of currency at the market rate once the rate has risen (fallen) to a prespecified...

This paper suggests that normal speculative activity could be a source of random-walk exchange rate behavior. Using a noise trader model to analyze very short-term exchange rate behavior, it shows that rational, risk-averse speculators will smooth the impact of shocks to exchange rate...