This paper estimates the extent to which market power is a source of production misallocation. Productive inefficiency occurs through more production being allocated to higher cost units of production, and less production to lower-cost production units, conditional on a fixed aggregate quantity....

We analyze the aggregate markup of a small-open economy, Belgium, using a firm-level dataset that includes all non-financial, private firms. The dataset covers the period 1980-2016 and merges the annual firm accounts over three periods when firms faced different reporting thresholds for the key...