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Q2 Size of tax Lost gains from trade Cost to sellers Value to buyers Reduction in quantity due to the tax Determinants of Deadweight Loss ? What determines whether the deadweight loss from a tax is small or large? – 什么決定了稅收導(dǎo)致的無(wú)謂損失的大小? ? The magnitude of the deadweight loss depends on how much the quantity supplied and quantity demanded respond to changes in the price. – 無(wú)謂損失的大小依賴于價(jià)格變化所引起的供給量和需求量的變化。 Tax Distortions and Elasticities... 稅收扭曲和彈性 Quantity Price Demand Supply 0 When supply is relatively inelastic, the deadweight loss of a tax is small. (a) Inelastic Supply (a)供給缺乏彈性 Size of tax Quantity Price Demand Supply 0 Size of tax When supply is relatively elastic, the deadweight loss of a tax is large. (b) Elastic Supply (b) 供給富有彈性 Tax Distortions and Elasticities... 稅收扭曲和彈性 Quantity Price Demand Supply 0 When demand is relatively inelastic, the deadweight loss of a tax is small. (c) Inelastic Demand需求缺乏彈性 Size of tax Tax Distortions and Elasticities... 稅收扭曲和彈性 Quantity Price Demand Supply 0 Size of tax When demand is relatively elastic, the deadweight loss of a tax is large. (d) Elastic Demand需求富有彈性 Tax Distortions and Elasticities... 稅收扭曲和彈性 Determinants of Deadweight Loss 無(wú)謂損失的決定因素 ? The greater the elasticities of supply and demand – 供需的價(jià)格彈性越大 ? The larger will be the decline in the equilibrium quantity and, – 均衡數(shù)量的下降越大 ? The greater the deadweight loss of a tax. – 稅收帶來(lái)的無(wú)謂損失也就越大 Th