The incidence of taxation and the design of an optimal tax system have been extensively discussed in the public finance literature but mainly within a competitive market setting or within a homogenous good (Cournot type) oligopoly. In a differentiated product oligopoly, the effect of taxation...

Cloud computing is defined to be Internet based computing technology, where the term 'cloud' simply means Internet -- and cloud computing refers to services that are accessed directly over the Internet. There are essentially three categories of cloud computing. (i) Iaas (Infrastructure as a...

The open source model is a form of software development with source code that is typically made available to all interested parties. At the core of this process is a decentralized production process: open source software development is done by a network of unpaid software developers. Using data...

In this paper, we examine how software vulnerabilities affect firms that license software and consumers that purchase software. In particular, we model three decisions of the firm: (i) an upfront investment in the quality of the software to reduce potential vulnerabilities; (ii) a policy...

The NCAA college football ratings, in which the "so-called" national champion is determined, has been plagued by controversies the last few years. The difficulty arises because there is a need to make a complete ranking of teams even though each team has a different schedule of games with a...

Software security is a major concern for vendors, consumers, and regulators since attackers that exploit vulnerabilities can cause substantial damages. When vulnerabilities are discovered after the software has been sold to consumers, the firms face a dilemma. A policy of disclosing...

Using a unique dataset we examine empirically which factors explain output per contributor in open source projects. We find that the output per contributor of open source programmes is much higher when licenses are less restrictive. Further examination suggests that the difference in output per...

In this Paper, I explore the relationship between native language and use of the Internet and examine whether English is likely to retain its first-mover advantage of a large installed base of English language websites. I study this issue empirically using a unique dataset on (home) Internet use...

In this Paper, we empirically test for network effects and preannouncement effects in the DVD market. We do this by measuring the effect of potential (incompatible) competition on a network undergoing growth. We find that there are network effects. The data is generally consistent with the...

Economists often play crucial roles in designing and implementing public policies; thus it is of importance to better understand the values that underlie their decisions. We explore the value hierarchies of economists in four studies: The first two studies examine whether value differences exist...