We examine the time trends and determinants of the method of payment in M&As spanning four decades. The fraction of mixed payments tripled from about 10% before the turn of the century to 30% in the new century, while the fraction of stock (cash) payments peaked (bottomed out) in the late 1990s...

We estimate that 13.6% of all option grants to top executives during the period 1996-2005 were backdated or otherwise manipulated. Our study primarily focuses on grants that were unscheduled and at-the-money, of which we estimate that 18.9% were manipulated. The fraction is 23.0% before the new...