Modeling drug purchasing behavior
Simulated purchasing of each day’s dose varied as an inverse function of increases in price across the three studies (see Fig. Left panel: Blinded-Dose Purchase Task demand curves for active and placebo doses across the cocaine (top), methamphetamine (middle), and alcohol (bottom) studies. Error bars represent standard error of the mean. Consumption data plotted as a function of price per dose (rather than unit price; see text for additional comparisons based on unit price). Right panel: demand intensity (left Equation Lastly, purchasing data for the alcohol study were also well described by Eq. 