This paper will focus on online crime, which has taken off as a serious industry since about 2004. Until then, much of the online nuisance came from amateur hackers who defaced websites and wrote malicious software in pursuit of bragging rights. But now criminal networks have emerged -- online...

Studies of happiness have examined the impact of demographics, personality and emotions accompanying daily activities on life satisfaction. We suggest that how people feel while contemplating aspects of their lives, including their weight, children and future prospects, is a promising yet...

Attackers compromise web servers in order to host fraudulent content, such as malware and phishing websites. While the techniques used to compromise websites are widely discussed and categorized, analysis of the methods used by attackers to identify targets has remained anecdotal. In this paper,...

Bitcoin is an online communication protocol that facilitates the use of a virtual currency, including electronic payments. Bitcoin's rules were designed by engineers with no apparent influence from lawyers or regulators. Bitcoin is built on a transaction log that is distributed across a network...

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...