Is executive compensation influenced by the composition of the board of directors? About 8% of chief executive officers (CEOs) are reciprocally interlocked with another CEO--the current CEO of firm A serves as a director of firm B and the current CEO of firm B serves as a director of firm A....

Quantile regression, as introduced by Koenker and Bassett (1978), may be viewed as an extension of classical least squares estimation of conditional mean models to the estimation of an ensemble of models for several conditional quantile functions. The central special case is the median...