Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
An econometric model is here used to estimate the price and output effect of the Limitation of the Vend, a mineowners' cartel. It is found that when a formal regulation existed the price of coal rose significantly in the London market, whereas there was little output effect. The price effect was relatively small, however, especially when compared to the per unit tax on coal. Although the cartel was deemed to be successful, the existence of substantial monopoly profits was questioned.