How pollution tax shifts the supply curve to fix negative externalities

Public production, subsidies, and vouchers for positive externalities

Graphing how subsidies correct positive externalities

Finding unregulated quantity and price of a pesticide-producing firm

Finding equilibrium price and quantity with property rights and social cost

Finding unregulated quantity and price of a polluting firm

Finding the maximum quantity under a cap and trade policy

Determining product price and permit trading under Cap and Trade

Finding quantity and price with no government pollution control

Finding efficient quantity and price with a pollution tax

Determining the pollution tax levy from marginal external cost

Calculating government tax revenue from a per-unit tax

Finding tuition and enrollment with private universities and external benefits

Splitting tuition between students and taxpayers at public universities

Finding the subsidy to achieve the efficient number of students

Calculating the voucher value to reach the efficient number of students