We study the interaction between public and private intellectual property rights (IPR) protection in a duopoly in which software developers offer a product variety of differing quality and compete for heterogeneous users, who have an option to buy a legal version, possibly use an illegal copy,...

In the process of using discrete element method (DEM) to simulate the interaction between straw and machinery, because the existing straw model does not have destructible characteristics, some interaction process cannot be simulated, which affects the accuracy of simulation. In order to solve...

Sitting in the workplace for long periods puts most programmers and office workers at health risk. Therefore, a solution to create health at work that will increase the efficiency of these employees and ensure their health is needed in the long run. Our proposed method considers an open office...

This paper develops and estimates cost-of-living indexes (e.g., Fisher and Griliches [1995]) for measuring buyer benefits from technical change in the commercial mainframe computer industry in the 1980s. For this purpose we use a micro-econometric model of demand for product characteristics...

Digital tools potentially enable remote collaboration. Analyzing how some 191 thousand software developers in the United States collaborate on the largest online opensource code repository platform, I find 79.8% of users clustering in only ten economic areas. Conditional on economic-area...