This paper reviews the traditional ways to measure volatility which are based only on closing prices, and introduces alternative measurements that use additional information of prices during the day: opening, minimum, maximum, and closing prices. Using th

In this paper we deal with the problem of non-stationarity encountered in a lot of data sets, mainly in financial and economics domains, coming from the presence of multiple seasonnalities, jumps, volatility, distorsion, aggregation, etc. Existence of non-stationarity involves spurious behaviors...

While the existence of fixed costs in entering asset markets is the leading rationalization of the “participation puzzle” —the fact that most households do not hold stocks, despite the diversification gains and the significant risk-premium involved—, most motivations of these fixed costs...

Many practitioners point out that the speculative profits of institutional traders arc eroded by the difficulty in gauging the price impact of their trades. In this paper. we develop a model of strategic trading where speculators face such a dilemma because of incomplete information about...

This paper demonstrates that the optimal willingness to pay for a stock is the payoff from holding the stock for one period when investors have different expectations, and that the willingness to pay can be represented as the sum of the expected present value of future dividends and the expected...

We develop some properties on the autocorrelation of the k-period returns for the general mean reversion (GMR) process in which the stationary component is not restricted to the AR(l) process but take the form of a general ARMA process. We then derive some properties of the GMR process and three...

This paper examines whether the Sharpe ratios constructed from survey forecasts are favorable to the rational approach or the irrational approach in explaining the equity premium puzzle. T-tests, bias tests, and structural break tests for the bias are conducted for the examination. The results...

This paper extends the Harrison-Kreps model by allowing limited short sales. The main results of this paper are: (1) investors pursue short-term gains when perceiving heterogeneous expectations; (2) important properties of the equilibrium price in the Harrison-Kreps model still hold even when...

This paper presents strong statistical evidence that the dividend- price ratio in the US has experienced a change in persistence from I(0) to I(1), while stock returns have not. This provides an econometric explanation why the predictive power of the dividend-price ratio in the US has changed...

We present results of an experiment on expectation formation in an asset market. Participants to our experiment must provide forecasts of the stock future return to computerized utility-maximizing investors, and are rewarded according to how well their forecasts perform in the market. In the...