Heroin Consumption, Prices and Addiction: Evidence from Self‐reported Panel Data*
利用奥斯陆针具交换项目中海洛因注射者的两次访谈数据，估计了毒品需求模型，发现价格和收入对消费有显著影响，且交易者与非交易者的价格弹性不同。
Abstract Estimation models of drug demand should encompass the aspect of addiction. Here, we consider two static panel data regression models and two cross‐section models with lags or leads in drug consumption as additional regressors. Heroin injectors attending a needle exchange service in Oslo were interviewed twice, with a one‐year interval. Despite our relatively small sample, we obtain statistically significant price and income responses for nearly all of the models and specifications applied. The sample is split by dealing status, with dealers obtaining price elasticities in the range of [−0.15, −1.51] and non‐dealers [−0.71, −1.69]. Somewhat surprisingly, the estimates of the variance of the latent individual‐specific variable are rather low in the panel data models, although higher for non‐dealers than for dealers.