Econometric Analysis of Trends in Joint Venture Activity
The paper uses an econometric model of the propensity of firms to disclose their intension to engage in research joint ventures (RJV), in order to explain the recent precipitous decline in RJVs filed with the U.S. Department of Justice.
Link
http://www.rpi.edu/dept/economics/www/workingpapers/rpi0305.pdf