Fig. 2

Association of brand-name/generic price difference with disparity in access to brand-name drugs for chronic conditions. Notes: This figure shows the association of price difference per day between brand-name and generic drugs with disparity in access to brand-name drugs for chronic conditions. Estimated coefficients of high-income group dummy for each drug from Eq. (1) address disparity in access to brand-name drugs (a coefficient of zero means no disparity). Each filled circle represents the 252 chronic drugs. The fitted regression line is obtained from FGLS regression of Eq. (2), which corresponds to column 6 in Table 3