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Main Rev-Exp Results In one of their main results DT (2008) find:Revt = g0 + g1Expt-1 + g2 Expt + g3 Expt+1DT1967-1985 0.007 1.031 -0.020 1986-2003 0.101 0.882 0.055 US – Replicating DT1967-1985 0.002 1.032 -0.030 1986-2003 0.088 0.900 0.020 US – No Special Items1967-1985 -0.003 1.042 -0.036 1986-2003 0.009 1.045 -0.045
Economic Pressure Variables • 10 proxies for economic pressure • General Competitive Pressure • Four firm concentration ratio • Abnormal analyst following • Abnormal return reaction at earnings announcements • Firm Performance • Leverage • Probability of bankruptcy • Incidence of operating losses • Negative revenue growth • Operating choices • Incidence of Merger and Acquisition Activity • Incidence of Discontinued Operations • Negative employee growth