In this study, we explore the issue of how to enhance forecast of the box office sales, an all-time question for managers in the motion picture industry. The conceptual core of our approach is the expected sales. The expected sales of agents in the movie market (i.e. screen managers at supply...

In order to explain the U-shaped pattern of autocorrelations of stock returns i.e., autocorrelations starting around 0 for short-term horizons and becoming negative and then moving toward 0 for long-term horizons, researchers suggested the use of a state-space model consisting of an I(1)...

Investing in micro-loan market has become one of the most famous instrument in alternative finance due to the fact that its rate of return is comparable to other risky financial instruments and it places investors in the position of philanthropists and induce “enjoyment”. In terms of...

Consumer's preference structure varies across product categories. For some durable goods, such as laptops and smartphones, consumers tend to distinguish a product from its competing ones by differences in several features ordered in their importance. Under this preference tructure, so called...

Consumer's preference structure varies over product categories. For some durable goods, such as laptops and smartphones, consumers tend to distinguish a product from its competing ones by differences in several features ordered in their importance. This preference structure, so called...

In this study, we suggest a framework to investigate and recover the actual impact of extreme online ratings and to understand biases in suppliers' expectations about box office sales, based on the nature of extreme behaviors, willingness to rate and skepticism, and information symmetry in the...

The state space model is widely used to handle time series data driven by related latent processes in many fields. In this article, we suggest a framework to examine the relationship between state space models and ARIMA models by examining the existence and positive-definiteness conditions...