1 Economics 100A: Microeconomic Analysis Fall 2001 Problem Set 4
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IB Economics SL Study Guide
S T U D Y G UID E SL www.ib.academy IB Academy Economics Study Guide Available on learn.ib.academy Author: Joule Painter Contributing Authors: William van Leeuwenkamp, Lotte Muller, Carlijn Straathof Design Typesetting Special thanks: Andjela Triˇckovi´c This work may be shared digitally and in printed form, but it may not be changed and then redistributed in any form. Copyright © 2018, IB Academy Version: EcoSL.1.2.181211 This work is published under the Creative Commons BY-NC-ND 4.0 International License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/4.0 This work may not used for commercial purposes other than by IB Academy, or parties directly licenced by IB Academy. If you acquired this guide by paying for it, or if you have received this guide as part of a paid service or product, directly or indirectly, we kindly ask that you contact us immediately. Laan van Puntenburg 2a ib.academy 3511ER, Utrecht [email protected] The Netherlands +31 (0) 30 4300 430 TABLE OF CONTENTS Introduction 5 1. Microeconomics 7 – Demand and supply – Externalities – Government intervention 2. Macroeconomics 29 – Overall economic activity – Aggregate demand and aggregate supply – Macroeconomic objectives – Government Intervention 3. International Economics 53 – Trade – Exchange rates – The balance of payments 4. Development Economics 65 – Economic development – Measuring development – Contributions and barriers to development – Evaluation of development policies 5. Definitions 77 – Microeconomics – Macroeconomics – International Economics – Development Economics 6. Abbreviations 93 7. Essay guide 97 – Time Management – Understanding the question – Essay writing style – Worked example 3 TABLE OF CONTENTS 4 INTRODUCTION The foundations of economics Before we start this course, we must first look at the foundations of economics. -
Labour Supply
7/30/2009 Chapter 2 Labour Supply McGraw-Hill/Irwin Labor Economics, 4th edition Copyright © 2008 The McGraw-Hill Companies, Inc. All rights reserved. 2- 2 Introduction to Labour Supply • This chapter: The static theory of labour supply (LS), i. e. how workers allocate their time at a point in time, plus some extensions beyond the static model (labour supply over the life cycle; household fertility decisions). • The ‘neoclassical model of labour-leisure choice’. - Basic idea: Individuals seek to maximise well -being by consuming both goods and leisure. Most people have to work to earn money to buy goods. Therefore, there is a trade-off between hours worked and leisure. 1 7/30/2009 2- 3 2.1 Measuring the Labour Force • The US de finit io ns in t his sect io n a re s imila r to t hose in N Z. - However, you have to know the NZ definitions (see, for example, chapter 14 of the New Zealand Official Yearbook 2008, and the explanatory notes in Labour Market Statistics 2008, which were both handed out in class). • Labour Force (LF) = Employed (E) + Unemployed (U). - Any person in the working -age population who is neither employed nor unemployed is “not in the labour force”. - Who counts as ‘employed’? Size of LF does not tell us about “intensity” of work (hours worked) because someone working ONE hour per week counts as employed. - Full-time workers are those working 30 hours or more per week. 2- 4 Measuring the Labour Force • Labor Force Participation Rate: LFPR = LF/P - Fraction of the working-age population P that is in the labour force. -
Chapter 8 8 Slutsky Equation
Chapter 8 Slutsky Equation Effects of a Price Change What happens when a commodity’s price decreases? – Substitution effect: the commodity is relatively cheaper, so consumers substitute it for now relatively more expensive other commodities. Effects of a Price Change – Income effect: the consumer’s budget of $y can purchase more than before, as if the consumer’s income rose, with consequent income effects on quantities demanded. Effects of a Price Change Consumer’s budget is $y. x2 y Original choice p2 x1 Effects of a Price Change Consumer’s budget is $y. x 2 Lower price for commodity 1 y pivots the constraint outwards. p2 x1 Effects of a Price Change Consumer’s budget is $y. x 2 Lower price for commodity 1 y pivots the constraint outwards. p2 Now only $y’ are needed to buy the y' original bundle at the new prices , as if the consumer’s income has p2 increased by $y - $y’. x1 Effects of a Price Change Changes to quantities demanded due to this ‘extra’ income are the income effect of the price change. Effects of a Price Change Slutskyyg discovered that changes to demand from a price change are always the sum of a pure substitution effect and an income effect. Real Income Changes Slutsky asserted that if, at the new pp,rices, – less income is needed to buy the original bundle then “real income ” is increased – more income is needed to buy the original bundle then “real income ” is decreased Real Income Changes x2 Original budget constraint and choice x1 Real Income Changes x2 Original budget constraint and choice New budget constraint -
Unit 4. Consumer Behavior
UNIT 4. CONSUMER BEHAVIOR J. Alberto Molina – J. I. Giménez Nadal UNIT 4. CONSUMER BEHAVIOR 4.1 Consumer equilibrium (Pindyck → 3.3, 3.5 and T.4) Graphical analysis. Analytical solution. 4.2 Individual demand function (Pindyck → 4.1) Derivation of the individual Marshallian demand Properties of the individual Marshallian demand 4.3 Individual demand curves and Engel curves (Pindyck → 4.1) Ordinary demand curves Crossed demand curves Engel curves 4.4 Price and income elasticities (Pindyck → 2.4, 4.1 and 4.3) Price elasticity of demand Crossed price elasticity Income elasticity 4.5 Classification of goods and demands (Pindyck → 2.4, 4.1 and 4.3) APPENDIX: Relation between expenditure and elasticities Unit 4 – Pg. 1 4.1 Consumer equilibrium Consumer equilibrium: • We proceed to analyze how the consumer chooses the quantity to buy of each good or service (market basket), given his/her: – Preferences – Budget constraint • We shall assume that the decision is made rationally: Select the quantities of goods to purchase in order to maximize the satisfaction from consumption given the available budget • We shall conclude that this market basket maximizes the utility function: – The chosen market basket must be the preferred combination of goods or services from all the available baskets and, particularly, – It is on the budget line since we do not consider the possibility of saving money for future consumption and due to the non‐satiation axiom Unit 4 – Pg. 2 4.1 Consumer equilibrium Graphical analysis • The equilibrium is the point where an indifference curve intersects the budget line, with this being the upper frontier of the budget set, which gives the highest utility, that is to say, where the indifference curve is tangent to the budget line q2 * q2 U3 U2 U1 * q1 q1 Unit 4 – Pg. -
Demand Demand and Supply Are the Two Words Most Used in Economics and for Good Reason. Supply and Demand Are the Forces That Make Market Economies Work
LC Economics www.thebusinessguys.ie© Demand Demand and Supply are the two words most used in economics and for good reason. Supply and Demand are the forces that make market economies work. They determine the quan@ty of each good produced and the price that it is sold. If you want to know how an event or policy will affect the economy, you must think first about how it will affect supply and demand. This note introduces the theory of demand. Later we will see that when demand is joined with Supply they form what is known as Market Equilibrium. Market Equilibrium decides the quan@ty and price of each good sold and in turn we see how prices allocate the economy’s scarce resources. The quan@ty demanded of any good is the amount of that good that buyers are willing and able to purchase. The word able is very important. In economics we say that you only demand something at a certain price if you buy the good at that price. If you are willing to pay the price being asked but cannot afford to pay that price, then you don’t demand it. Therefore, when we are trying to measure the level of demand at each price, all we do is add up the total amount that is bought at each price. Effec0ve Demand: refers to the desire for goods and services supported by the necessary purchasing power. So when we are speaking of demand in economics we are referring to effec@ve demand. Before we look further into demand we make ourselves aware of certain economic laws that help explain consumer’s behaviour when buying goods. -
Indirect Taxes for Redistribution: Should Necessity Goods Be Favored?
A Service of Leibniz-Informationszentrum econstor Wirtschaft Leibniz Information Centre Make Your Publications Visible. zbw for Economics Boadway, Robin; Pestieau, Pierre Working Paper Indirect taxes for redistribution: Should necessity goods be favored? CESifo Working Paper, No. 3667 Provided in Cooperation with: Ifo Institute – Leibniz Institute for Economic Research at the University of Munich Suggested Citation: Boadway, Robin; Pestieau, Pierre (2011) : Indirect taxes for redistribution: Should necessity goods be favored?, CESifo Working Paper, No. 3667, Center for Economic Studies and ifo Institute (CESifo), Munich This Version is available at: http://hdl.handle.net/10419/54927 Standard-Nutzungsbedingungen: Terms of use: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Documents in EconStor may be saved and copied for your Zwecken und zum Privatgebrauch gespeichert und kopiert werden. personal and scholarly purposes. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle You are not to copy documents for public or commercial Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich purposes, to exhibit the documents publicly, to make them machen, vertreiben oder anderweitig nutzen. publicly available on the internet, or to distribute or otherwise use the documents in public. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, If the documents have been made available under an Open gelten abweichend von diesen Nutzungsbedingungen die in der dort Content Licence (especially Creative Commons Licences), you genannten Lizenz gewährten Nutzungsrechte. may exercise further usage rights as specified in the indicated licence. www.econstor.eu Indirect Taxes for Redistribution: Should Necessity Goods be Favored? Robin Boadway Pierre Pestieau CESIFO WORKING PAPER NO. -
Giffen Behaviour and Asymmetric Substitutability*
Tjalling C. Koopmans Research Institute Tjalling C. Koopmans Research Institute Utrecht School of Economics Utrecht University Janskerkhof 12 3512 BL Utrecht The Netherlands telephone +31 30 253 9800 fax +31 30 253 7373 website www.koopmansinstitute.uu.nl The Tjalling C. Koopmans Institute is the research institute and research school of Utrecht School of Economics. It was founded in 2003, and named after Professor Tjalling C. Koopmans, Dutch-born Nobel Prize laureate in economics of 1975. In the discussion papers series the Koopmans Institute publishes results of ongoing research for early dissemination of research results, and to enhance discussion with colleagues. Please send any comments and suggestions on the Koopmans institute, or this series to [email protected] ontwerp voorblad: WRIK Utrecht How to reach the authors Please direct all correspondence to the first author. Kris De Jaegher Utrecht University Utrecht School of Economics Janskerkhof 12 3512 BL Utrecht The Netherlands. E-mail: [email protected] This paper can be downloaded at: http:// www.uu.nl/rebo/economie/discussionpapers Utrecht School of Economics Tjalling C. Koopmans Research Institute Discussion Paper Series 10-16 Giffen Behaviour and Asymmetric * Substitutability Kris De Jaeghera aUtrecht School of Economics Utrecht University September 2010 Abstract Let a consumer consume two goods, and let good 1 be a Giffen good. Then a well- known necessary condition for such behaviour is that good 1 is an inferior good. This paper shows that an additional necessary for such behaviour is that good 1 is a gross substitute for good 2, and that good 2 is a gross complement to good 1 (strong asymmetric gross substitutability). -
Identity, Morals and Taboos: Beliefs As Assets
IDENTITY, MORALS, AND TABOOS: BELIEFS AS ASSETS∗ ROLAND BENABOU´ AND JEAN TIROLE We develop a theory of moral behavior, individual and collective, based on a general model of identity in which people care about “who they are” and in- fer their own values from past choices. The model sheds light on many empir- ical puzzles inconsistent with earlier approaches. Identity investments respond nonmonotonically to acts or threats, and taboos on mere thoughts arise to protect beliefs about the “priceless” value of certain social assets. High endowments trig- ger escalating commitment and a treadmill effect, while competing identities can cause dysfunctional capital destruction. Social interactions induceboth social and antisocial norms of contribution, sustained by respectively shunning free riders or do-gooders. JEL Codes: D81, D91, Z13. “Man naturally desires . notonly praise, but praiseworthiness; or to be that thing which, though it should be praised by nobody, is, however, the natural and proper object of praise. He dreads, not only blame, but blame-worthiness; or to be that thing which, though it should be blamed by nobody, is, however, the natural and proper object of blame . .” “When I endeavour to examine my own conduct, when I endeav- our to pass sentence upon it, and either to approve or condemn it, it is evident that, in all such cases, I divide myself, as it were, into two persons: and that I, the examiner and judge, represent a different character from that other I, the person whose conduct is examined and judged of . .. The first is the spectator, whose sentiments with regard to my own conduct I endeavour to enter into, by placing my- self in his situation, and by considering how it would appear to me, whenseenfromthat particularpoint ofview. -
IB Economics HL Study Guide
S T U D Y G UID E HL www.ib.academy IB Academy Economics Study Guide Available on learn.ib.academy Author: Joule Painter Contributing Authors: William van Leeuwenkamp, Lotte Muller, Carlijn Straathof Design Typesetting Special thanks: Andjela Triˇckovi´c This work may be shared digitally and in printed form, but it may not be changed and then redistributed in any form. Copyright © 2018, IB Academy Version: EcoHL.1.2.181211 This work is published under the Creative Commons BY-NC-ND 4.0 International License. To view a copy of this license, visit creativecommons.org/licenses/by-nc-nd/4.0 This work may not used for commercial purposes other than by IB Academy, or parties directly licenced by IB Academy. If you acquired this guide by paying for it, or if you have received this guide as part of a paid service or product, directly or indirectly, we kindly ask that you contact us immediately. Laan van Puntenburg 2a ib.academy 3511ER, Utrecht [email protected] The Netherlands +31 (0) 30 4300 430 TABLE OF CONTENTS Introduction 5 1. Microeconomics 7 – Demand and supply – Externalities – Government intervention – The theory of the firm – Market structures – Price discrimination 2. Macroeconomics 51 – Overall economic activity – Aggregate demand and aggregate supply – Macroeconomic objectives – Government Intervention 3. International Economics 77 – Trade – Exchange rates – The balance of payments – Terms of trade 4. Development Economics 93 – Economic development – Measuring development – Contributions and barriers to development – Evaluation of development policies 5. Definitions 105 – Microeconomics – Macroeconomics – International Economics – Development Economics 6. Abbreviations 125 7. Essay guide 129 – Time Management – Understanding the question – Essay writing style – Worked example 3 TABLE OF CONTENTS 4 INTRODUCTION The foundations of economics Before we start this course, we must first look at the foundations of economics. -
Introduc0on to the Economics of Health and Medical Care
Introduc)on to the Economics of Health and Medical Care Session 1A—January 5, 2015 Health Economics PHARM 568 Winter 2015 Co-Coursemasters: Lou Garrison, PhD Norma Coe, PhD 1 Agenda • Course Objec)ves, Overview, and Resources • Economic Way of Thinking • Is Health Care Different? • Microeconomics Reminder • Stylized Facts and StasPcal Overview 2 Course Objecves • Master key economic concepts and analyPcal tools needed to analyze human economic behavior in general. • Understand and apply microeconomic principles to analyze the major issues of the health care sector. • Understand the key insPtuPonal and market factors that affect the incenPves of the stakeholders in the key health care markets. • Understand both the perspecPve and limits of economic analysis applied to health care. • Gain some historical economic perspecPve on the evoluPon of major health policy issues 3 Assignments and Grading Biweekly Homework Assignments A. All students are expected to complete the four weekly homework assignments. Each will require a 500-1000 word short essay of topic of interest. B. All parPcipants will complete a take-home exam midway in the course. C. Final exam will be scheduled for in-class during the scheduled Pme block GRADING: Classroom ParPcipaon 5% Homework assignments 20% Midterm 30% Final Exam 45% Grading will be based on student performance using the grading system for graduate students published in the 2002 - 2004 University of Washington General Catalog for Graduate and Professional Students, pp. 13. 4 Lectures 5 Key Economic Terms and -
1. Consider the Following Preferences Over Three Goods: �~� �~� �~� � ≽ �
1. Consider the following preferences over three goods: �~� �~� �~� � ≽ � a. Are these preferences complete? Yes, we have relationship defined between x and y, y and z, and x and z. b. Are these preferences transitive? Yes, if �~� then � ≽ �. If �~� then � ≽ �. If �~� then �~� and � ≽ �. Thus the preferences are transitive. c. Are these preferences reflexive? No, we would need � ≽ � � ≽ � 2. Write a series of preference relations over x, y, and z that are reflexive and complete, but not transitive. � ≽ � � ≽ � � ≽ � � ≽ � � ≽ � � ≻ � We know this is not transitive if � ≽ � and � ≽ � then � ≽ �. But � ≻ �, which would contradict transitivity. 3. Illustrate graphically a set of indifference curves where x is a neutral good and y is a good that the person likes: We know that this person finds x to be a neutral good because adding more x while keeping y constant (such as moving from bundle A to D, or from B to E), the person is indifferent between the new bundle with more x and the old bundle with less x. We know this person likes y because adding more y while keeping x constant (such as moving from bundle A to B, or from D to E), the person is strictly prefers the new bundle with more y than the old bundle with less y. 4. Draw the contour map for a set of preferences when x and y are perfect substitutes. Are these well-behaved? Explain why or why not. We know these are perfect substitutes because they are linear (the MRS is constant) We know they are strictly monotonic because adding Y while keeping X constant (moving from bundle A to bundle B), leads to a strictly preferred bundle (� ≻ �). -
Chapter 4 Individual and Market Demand
Chapter 4: Individual and Market Demand CHAPTER 4 INDIVIDUAL AND MARKET DEMAND EXERCISES 1. The ACME corporation determines that at current prices the demand for its computer chips has a price elasticity of -2 in the short run, while the price elasticity for its disk drives is -1. a. If the corporation decides to raise the price of both products by 10 percent, what will happen to its sales? To its sales revenue? We know the formula for the elasticity of demand is: %DQ E = . P %DP For computer chips, EP = -2, so a 10 percent increase in price will reduce the quantity sold by 20 percent. For disk drives, EP = -1, so a 10 percent increase in price will reduce sales by 10 percent. Sales revenue is equal to price times quantity sold. Let TR1 = P1Q1 be revenue before the price change and TR2 = P2Q2 be revenue after the price change. For computer chips: DTRcc = P2Q2 - P1Q1 DTRcc = (1.1P1 )(0.8Q1 ) - P1Q1 = -0.12P1Q1, or a 12 percent decline. For disk drives: DTRdd = P2Q2 - P1Q1 DTRdd = (1.1P1 )(0.9Q1 ) - P1Q1 = -0.01P1Q1, or a 1 percent decline. Therefore, sales revenue from computer chips decreases substantially, -12 percent, while the sales revenue from disk drives is almost unchanged, -1 percent. Note that at the point on the demand curve where demand is unit elastic, total revenue is maximized. b. Can you tell from the available information which product will generate the most revenue for the firm? If yes, why? If not, what additional information would you need? No.