Lecture Notes - Dec 5 (Econ 1021)

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David Gu December 5 th , 2012 ECON 1021A Lecture 21 Notes Final Exam Review Chapter 11 Understand cost curves thoroughly. Differences between average and marginal cost curves. When the marginal cost curve is greater/less than average total cost, it is increasing/decreasing and intersects at the minimum point. All firm’s production occurs at marginal revenue equals marginal cost. Chapter 12 For firms in perfect competition, their marginal revenue is its price. The price in the long run is the intersection of marginal revenue and average total cost. Chapters 14 & 15 For oligopolies and monopolies, the marginal revenue has half the slope of the demand curve. Oligopolies will end up producing zero economic profit in the long run if they play their ‘games’ at the Nash equilibrium. Chapter 19 Understand how value of marginal product affects labour inequality and discrimination. Lorenz curve, Gini ratio, redistribution, and why we use regressive tax systems in Canada. Chapter 7 The tax per unit is the difference between the intersection of marginal social cost and marginal private benefit and the marginal cost at such a quantity. The marginal cost

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Lecture Notes - Dec 5 (Econ 1021)

Transcript of Lecture Notes - Dec 5 (Econ 1021)

David GuDecember 5th, 2012ECON 1021ALecture 21 NotesFinal Exam ReviewChapter 11Understand cost curves thoroughly. Diferences between average and marginal cost curves. When the marginal cost curve is greaterless than average total cost, it is increasingdecreasing and intersects at the minimum !oint. "ll #rm$s !roduction occurs at marginal revenue e%uals marginal cost. Chapter 12&or #rms in !er'ect com!etition, their marginal revenue is its !rice.(he !rice in the long run is the intersection o' marginal revenue and average total cost. Chapters 14 & 1&or oligo!olies and mono!olies, the marginal revenue has hal' the slo!e o' the demand curve.)ligo!olies will end u! !roducing *ero economic !ro#t in the long run i'they !lay their +games$ at the ,ash e%uilibrium. Chapter 1!Understand how value o' marginal !roduct afects labour ine%uality and discrimination. -oren* curve, Gini ratio, redistribution, and why we use regressive ta. systems in /anada. Chapter "(he ta. !er unit is the diference between the intersection o' marginal social cost and marginal !rivate bene#t and the marginal cost at such a %uantity. (he marginal cost (he deadweight loss is always between the e0cient and ine0cient %uantity above the marginal social cost and marginal bene#t.(he hori*ontal distance between the su!!ly and su!!ly with %uota is the %uota itsel'. /anadian !roducers gain 'rom a %uota and consumers lose. David GuDecember 5th, 2012(he vertical distance between the su!!ly curve and the su!!ly curve with the ta. is the ta. itsel'. (a.es incurve a shi't +u!wards$.Chapter 4(he more inelastic the demand, the more the ta. is !aid by the consumer.(he more elastic the demand, the more the ta. is !aid by the !roducer.(he more inelastic the su!!ly, the more ta. is !aid by the !roducer. (he more elastic the su!!ly, the more ta. is !aid by the consumer.