Using data from FTSE 350 firms, we examine factors influencing explicit relative performance evaluation (RPE) conditions in performance-vested equity grants. We provide exploratory evidence on whether the use or characteristics of RPE are associated with efforts to improve incentives by removing common risk, other economic factors discussed in the RPE literature, or external pressure to implement RPE. We find that many of these economic factors, including common risk reduction, are more closely related to specific relative performance conditions than to the firm-level decision to use RPE in some or all of their equity grants. We also find that greater external monitoring by institutional investors or others is associated with plans with tougher overall RPE conditions. The relative performance conditions are binding in most RPE plans, with nearly two-thirds of the grants vesting only partially or not vesting at all. Further, we find evidence that vesting percentages vary in RPE and non-RPE plans.Keywords restricted stock grant, equity plan, dividend playout ratio, stock option grant, compensation risk, RPE, equitybased pay, dividend yield, executive compensation contract, equity incentive, institutional investor, stock return volatility, London stock exchange, stock market performance, share price performance Abstract ______________________________________________________________________________ Using data from FTSE 350 firms, we examine the factors influencing the explicit use of relative performance evaluation (RPE) in performance-vested equity grants, and whether RPE is used to improve incentives or to opportunistically increase vesting and/or placate external parties calling for its use. We find little evidence that the simple decision to use or not use RPE is associated with the economic factors identified in RPE theories. Instead, these factors are associated with specific RPE performance conditions. The relative performance conditions are binding in most RPE plans, with nearly two-thirds of the grants vesting only partially or not vesting at all. However, we find no evidence that vesting percentages are higher in RPE plans than in non-RPE plans, and no evidence that RPE is used opportunistically to increase vesting and compensation.