This comment is ignorant at best and racist at worst imo. Food adulteration is a common practice on ALL low income countries. India has a substantial population living with one of the lowest per capita incomes in the world.
>"A common way to get a first-order approximation of this relationship is to estimate the correlations between trust and GDP per capita. This visualization provides evidence of this correlation... As it can be seen, there is a very strong positive relationship. Most academic studies find that this relationship remains after controlling for further characteristics."
Trust is vital to maintaining healthy financial and business relationships. Contracts, loans, credit, cheques, post-paid billing, and much more all reduce friction and costs in an economy and depend on trust.
What's the correlation between low income countries and low trust countries?