For publicly-traded companies, Stock Options were the primary form of Long-Term Incentive Compensation (LTIP) until 2004, when FASB 123R (later ASB 718) was enacted requiring companies to account for those options on their balance sheets.  By 2005, Restricted Stock (RS) became the LTIP of choice.  Current research indicates that publicly-traded companies are awarding Restricted Stock Units (RSUs) over Restricted Stock (RS) by a factor of almost 4 to 1.  In considering an appropriate long-term incentive vehicle, it is critical that each company weigh the advantages and disadvantages very carefully against their overall compensation objectives.