My central research area is on the relationship between information technology and productivity and the factors that affect the value of IT investments. Most of my recent work has been the study of complementary factors, such as organizational design and human capital, on the value of IT. Most of this work is directed at firms in all industries, although I have become increasingly interested in IT deployment in healthcare. In recent years, we have been more extensively working on the role of the IT workforce and issues that affect the demand and wages of IT workers (such as offshoring and the H1-B visa program). I have also been extensively involved in electronic business research investigating the the nature of competition in electronic markets (such as on-line travel agents), the value proposition for alternative delivery systems (such as online retail banking), the role of switching costs in determining pricing and product strategy (as in online discount brokerage), and the effect of recommender systems on consumer behavior.

I teach undergraduate and graduate courses in information systems management and economics, principally OPIM210 (Management Information Systems), and OPIM469/669 (Advance Topics in Information Strategy). I have won a few teaching awards at Wharton including the David Hauck Award (1999), the Wharton Excellence in Teaching Award (1998, 1999, 2000, 2001, 2003, 2007), and the University-wide Lindback Award for Distinguished Teaching (1998). I am also the one of the academic advisors for the undergraduate concentration in Managing Electronic Commerce and had been the undergraduate advisor for OPIM for 10 years, although I do not currently hold that position.

In my spare time, I also consult and conduct research into the design of IT outsourcing agreements, methods for evaluating IT investments, and other questions at the intersection of information systems, economics and econometrics. I also occasionally serve as an expert witness for information technology related litigation. Most recently my cases have involved software project problems, the structure of the enterprise software industry, intellectual property issues in open source software, and consumer behavior in operating system software markets. Finally, I am currently a second degree brown belt in American Kenpo Karate, and an enthusiastic, but not particularly competitive, triathlete.

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