The study looked at how much money different states in India spend on public health compared to their income. They found that as states get richer, they tend to spend more on public health. This relationship holds true over a long period of time. The study also showed that states with higher incomes tend to spend more on health in the short term, but in the long term, the relationship is one-way. This means that richer states tend to spend more on health, but spending more on health doesn't necessarily make a state richer. Overall, the study suggests that there are differences in how much each state spends on health based on their level of economic development.