Figure 1
The horizontal axis in all plots is labeled “log (income domic per capita)” and ranges from 0 to 15 in increments of 4 units. The vertical axis in all plots is labeled “log (consumption)” and ranges from negative 2 to 10 in increments of 4 units. The top-left plot is titled “Per person,” the top-right “Per capita (household),” the bottom-left “Per capita (P S U),” and the bottom-right “Per capita (State).” The scatter points are most dispersed in the “Per person” and “Per capita (household)” plots, representing individual and household data. The scatter points become progressively more tightly clustered around the regression line as the data is aggregated at the “Per capita (P S U)” (primary sampling unit) and then “Per capita (State)” levels. Note: All numerical values are approximated.Medicines consumption and income at different aggregation levels. Scatter plot of the logarithms of medicine consumption and income per person and per capita, based on aggregate data by household, primary sampling unit (PSU) and State. The red line indicates the income elasticity of demand, given by the regression line. Source: Prepared by the authors based on data from the BHBS 2017–18 for individuals consuming medicines in the surveyed period