Collard-Wexler, Allan - 2011
selected out of the ready-mix concrete industry. Measured productivity dispersion between the 10th and 90th percentile falls …This paper presents a quantitative model of productivity dispersion to explain why inefficient producers are slowly … from a 4 to 1 difference using OLS, to a 2 to 1 difference using a control function. Due to volatile productivity and high …