Tax Incidence: Tax incidence refers to who bears the burden of a tax - whether it falls more on consumers (buyers) or producers (sellers) in terms of changes in prices.
Progressive Tax: A progressive tax is one where the average tax rate increases as income rises. It means higher-income individuals pay a larger proportion of their income in taxes compared to lower-income individuals.
Excise Tax: An excise tax is a specific type of tax levied on specific goods such as alcohol, tobacco, gasoline, etc.