equivalent variation การใช้

• EIT and EI are equivalent variations in nomenclature that vary from state to state.
• This change of perspective often occurs in order to have the same sign of the Equivalent variation.
• Equivalent variation ( EV ) is a closely related measure that uses old prices and the new utility level.
• The deadweight loss can then be interpreted as the difference between the equivalent variation and the revenue raised by the tax.
• The equivalent variation is the change in wealth, at current prices, that would have the same effect on consumer welfare as would the change in prices, with income unchanged.
• When the good is neither a normal good nor an inferior good, or when there are no income effects for the good, then EV ( Equivalent variation ) = CV ( Compensating Variation ) = ?CS ( Change in Consumer Surplus)
• In modern economic literature, the most common measure of a taxpayer s loss from a distortionary tax, such as a tax on bicycles, is the " equivalent variation ", which is the maximum amount that a taxpayer would be willing to forgo in a lump sum to avoid the distortionary tax.