微观经济学原理(第2版)(清华经济学系列英文版教材)

accounting profit additional unit amount billing plan bottles buyers cents chocolate comparative advantage computers consumer surplus consumption cost curve cost-benefit principle costs and benefits deadweight loss demand curve difference earn ECONOMIC NATURALIST economic profit economic rent economists efficient elasticity of demand elasticity of supply equation equilibrium price equilibrium quantity example factors of production firm's gallon graph higher horizontal hour ice cream income increase individual inputs less marginal benefit marginal cost marginal utility market price monthly bill opportunity cost output percent perfectly competitive pizza players pounds of coffee pounds of nuts price and quantity price elasticity production possibilities curve quantity demanded recycling reduce rent reservation price result sell sellers shift shown in Figure slope spending supply and demand supply curve Suppose Susan ticket total economic surplus total expenditure total revenue trade vanilla variable vertical intercept wage workers