Background: To help ensure roadway safety, the federal government mandates trucking companies to conduct pre-employment urine drug tests before allowing drivers to operate a commer- cial motor vehicle. Unfortunately, urine testing has a short detection window and is easily thwarted, leading some...

Shortages in organs for transplantation have resulted in a renewed interest in designing incentive policies to promote organ supply. The donor‐priority rule, which grants priority for transplantation based on deceased organ donor registration status, has proven to be effective in both theory...

Developing efective strategies to earn excess returns in the stock market is a cuttingedge topic in the feld of economics. At the same time, stock price forecasting that supports trading strategies is considered one of the most challenging tasks. Therefore, this study analyzes and extracts news...

The Chinese central government recently published a new regulation to strictly limit the time minors spend on online games, providing a favorable policy environment for the protection of their physical and mental health as well as their overall development. We first provide empirical evidence...