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,...

We study how the strength of public intellectual property rights (IPR) protection against software piracy (copyright protection) affects private IPR protection (that software developers may themselves undertake to protect their IPR). There are two software developers that offer a product variety...

The economic analyses of software piracy typically rely on the simplifying assumption that the product is offered by a single producer. We argue that a realistic description of the software market and associated economic aspects of software piracy might be also captured by studying competition...

Two software developers, each offering a product variety of different (exogenously given) quality, compete in prices for heterogeneous users who choose from purchasing a legal version, using an illegal copy, and not using a product at all. Using an illegal version violates intellectual property...

We study price discrimination in a monopolistic software market. The monopolist charges different prices for the upgrade version and for the full version. Consumers are heterogeneous in taste for infinitely durable software and there is no resale. We show that price discrimination leads to a...