Deiana, Claudio; Giua, Ludovica; Nistico, Roberto - 2019
We investigate the effect of variations in the price of opium in Afghanistan on per capita dispensation of prescription … opioids in the US. Quarterly county-level data for 2003-2016 indicate that reductions in opium prices significantly increase …, therefore suggesting that the effect is moderated by the amount of opium contained in the products. While this evidence could …