This paper proposes a new class of nonlinear interval models for interval-valued time series (ITS). By matching the interval model with interval observations, we develop a nonlinearminimum-distance estimation method for the proposed models, and establish the asymptotictheory for the proposed...

The assumption that market efficiency informs the pricing of oil stocks is critical to understanding the co-movement between stock markets and oil markets. To test this assumption in relation to various types of real oil price changes, this article proposes a two-stage analysis method that...

We document a puzzling phenomenon, namely that overnight returns in Chinese stock markets are on average statistically and economically significantly negative. This finding seems to violate conventional asset pricing theory, yet the anomaly is robust to the choice of stock exchange, type of...