Economic theory to defend role of taxes to encourage healthy
behavior:
- To reduce economic externalities: Suppose there is a firm A
which produces good X which further results in increase in air and
water pollution. This pollution is harmful for environment and can
act as a negative externality to other economic institutions and
agents. There is a pigouvian tax which can be imposed on production
of good X to reduce its equilibrium quantity in market.
- Reduce income inequalities: Progressive taxation can help
reduce income inequalities which can result in rise of various low
income classes and their participation in demand. This can help
increase aggregate demand.
- Tax revenues can be used for investment in sustainable
development of economy.
Economic theory against taxes to encourage healthy behavior:
- Imposition of taxes can result in fall in economic activity and
deadweight loss.
- Taxes distort choices of economic agents by influencing price
ratios.
Policy makers should consider above 5 points while decision
making.