Continuous-time autoregressive moving average (CARMA) processes with a nonnegative kernel and driven by a nondecreasing Lévy process constitute a useful and very general class of stationary, nonnegative continuous-time processes that have been used, in particular, for the modeling of stochastic...

Frictionless economy is the new concept emerged from late 90s1. Its core idea is to remove the time both suppliers and customers spend on the trial and error on the price. So the markets always perform on the equilibriums. So markets can work in the perfect efficiency. But due to the various...

The heteropolyacid H3PW12O40 has been used as a catalyst for the production of 5-ethoxymethylfurfural (EMF), a viable liquid biofuel, from fructose, sucrose, and inulin. An EMF yield of 65% can be obtained from fructose within 30min at 130°C in ethanol under microwave heating. The introduction...

This paper investigates the fast-growing mobile TV industry in China. It uses a competitive strategy perspective to examine relations among main players and forces, including the incumbent 3G mobile operators, cable operators as new entrants, other emerging techniques, content providers as the...

Existing research on tournament-style contests suggests that mechanisms to sort contestants by ability level are unnecessary in the case of linear relative-performance contracts. This paper suggests that this result stems from uniform treatment of workers' marginal returns from effort, marginal...

During the 14-month period from May 2002 through June 2003, approximately 10% of U.S. supermarkets began to offer fresh irradiated ground beef under the stores' own labels. Using a survey of supermarket store managers from this period, the authors investigate the factors that influenced stores'...

This paper investigates both risk and technical inefficiency in a general stochastic frontier framework that is consistent with the Just-Pope framework. After applying the model to two separate cash crop-cover crop systems, the more general stochastic frontier model is found to reorder the...

During the 14-month period from May 2002 to June 2003, approximately 10 percent of U.S. supermarkets began to offer fresh irradiated ground beef under the stores' own labels. Using a survey of supermarket store managers from this time period, this paper investigates the factors that influenced...

During the 14-month period from May 2002 to June 2003, approximately 10 percent of U.S. supermarkets began to offer fresh irradiated ground beef under the stores' own labels. Using a survey of supermarket store managers from this time period, this paper investigates the factors that influenced...