Classroom Companion: Economics Martin Kolmar Principles of Microeconomics An Integrative Approach Second Edition Classroom Companion: Economics The Classroom Companion series in Economics features fundamental textbooks aimedatintroducingstudentstothecoreconcepts,empiricalmethods,theoriesand tools of the subject. The books offer a firm foundation for students preparing to movetowardsadvancedlearning.Eachbookfollowsacleardidacticstructureand presentseasyadoptionopportunitiesforlecturers. Moreinformationaboutthisseriesathttp://www.springer.com/series/16375 Martin Kolmar Principles of Microeconomics An Integrative Approach Second Edition MartinKolmar InstituteforBusinessEthics DepartmentofEconomics UniversitätSt.Gallen St.Gallen,Switzerland ISSN2662-2882 ISSN2662-2890 (electronic) ClassroomCompanion:Economics ISBN978-3-030-78166-8 ISBN978-3-030-78167-5 (eBook) https://doi.org/10.1007/978-3-030-78167-5 ©TheEditor(s)(ifapplicable)andTheAuthor(s),underexclusivelicensetoSpringerNatureSwitzerland AG2022 Thisworkissubjecttocopyright.AllrightsaresolelyandexclusivelylicensedbythePublisher,whether thewhole orpart ofthematerial isconcerned, specifically therights oftranslation, reprinting, reuse ofillustrations, recitation, broadcasting, reproductiononmicrofilmsorinanyotherphysicalway,and transmissionorinformationstorageandretrieval,electronicadaptation,computersoftware,orbysimilar ordissimilarmethodologynowknownorhereafterdeveloped. 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Theregisteredcompanyaddressis:Gewerbestrasse11,6330Cham,Switzerland Formydaughter, Carlotta Preface to the Second Edition After4years,itwastimetosubstantiallyexpandandrevisethistextbook.Indoing so, the three features that make this textbook special, contextualization, critical reflection,andapplicationofthetheories,havebeenfurtherdeveloped. In particular, the present edition systematically expands the part on decision theory. Traditional decision theory under certainty is joined by a chapter dealing with traditional decision theories under risk and uncertainty. Another chapter is devotedtobehavioraleconomics.Oneaspectofthischapteristobetterunderstand to what extent people take consequences of their behavior on other people into account (social preferences). A second aspect is to understand and explain devia- tions from the paradigm of rational choice. In addition, the empirical results and theoreticalexplanationsaremethodicallyscrutinizedtostrengthencriticalthinking and methodologicalcompetence.Furthermore,they are comparedwith the results ofclassicalrational-choicetheoryanditsimplicationsforeconomicpolicy.Afinal chapter on decision theory goes one step further and discusses important theories andresultsfromneuroscience,evolutionarypsychology,and narrativepsychology togainanevenmorefundamentalunderstandingofhumanperceptionandbehavior. This chapter also explores potential implications of these findings for traditional economicsandalternativenormativeviewsonhowtoconceptualizeindividualwell- beingandaneconomythatseekstopromoteit. Regarding those chapters that already existed in the first edition, theoretical additions have been made and case studies and examples have been updated. For example, the chapter on monopoly behavior includes a section on two-sided markets,thechapteroncomparativeadvantageincludescasestudiesontradewars and long-termchangesin comparativeadvantage,and the chapter on externalities includesmodelsandcasestudiesonpandemicsandtheclimatecrisis. vii viii PrefacetotheSecondEdition IthankMagnusHoffmannforco-authoringChaps.8and10andforhiscritical guidance throughout the project. I thank Judith Gamp for her critical comments and careful review of the manuscript. A thank you is also due to Yara Locher, whopreparedthegraphics,andtoClaudiaFichtner,JürgFurrer,StefanLegge,and Alfonso Sousa-Poza for their many constructive comments. Last but not least, I wouldalsothankallthosestudentswhomadeinputsbigandsmallthatfoundtheir wayintothisbook. St.Gallen,Switzerland MartinKolmar February2021 Preface to the First Edition One may wonder why I think that it makes sense to add yet another introductory textbooktotheoverfilledshelfofwell-establishedbooksonmicroeconomics.There arethreereasonsthatmotivatedmetodoso. First,alotoftextbooksineconomicswanttomakeonebelievethatthetheories presentedaremoreorlesscontext-freeandobjective.Thisisawronganddangerous belief. First of all, all theories are embeddedin an intellectual milieu from which they borrow and on which they build. No man is an island, and no scientific theoryiseither.Thetendencytoshunanycontextualizationsofthetheoriescomes at the risk of blindness towards the implicit assumptions, value judgements and epistemes on which the theory depends. This makes economics prone to being misused for ideologicalpurposes. Economic literacy does not only mean that one isabletounderstandtherulesandpatternsofmoderneconomies,butalsothatone understandshow economic theories relate to other social sciences and the culture from which they emerge. This textbook is an attempt to contextualize modern economicsin the hopethatstudentswillgeta betteroverviewof itsstrengthsand weaknesses.Itputsalsoaspecificemphasisoncasestudiesthatrangewidelyfrom the functioningof coffeemarkets,the logic of overfishing,to price discrimination in the digital age. This approach makes this book also potentially interesting for students who study economics as a minor and who want to understand how economictheoriesrelatetoothersocialsciencesandhowtheycanbeusedtobetter understandmarketsaswellasphenomenalikeclimatechange,amongmanyothers. Tomakeiteasiertoidentifythemostimportantcontextualizationsinthisbook, I work with a series of icons that one will find in the margins of this book. L indicates a legal, B a business, and (cid:2) a philosophical(broadlyspeaking) context. Furthermore, one will find the most important definitions and technical terms highlightedwitha(cid:2)-signinthemarginsofthebook. Second,textbooksthatgiveanintroductiontoeconomicshavebecomeamillion- dollar business over the last decades, with thousands of universities and colleges teaching the same basic principles worldwide. The globalization of this market has led to a commodification of textbooks in the attempt to sell as many copies aspossible.Asaresult,thelion’sshareofthemarketisservedbytextbooksthatare veryelementaryandonlyscratchthesurfaceofmosttheories.Thisstrategymakes themcommerciallysuccessful,becauseoftheappealtothemassmarketbut,atthe same time, denies the students a deeper and more sophisticated understanding of ix x PrefacetotheFirstEdition thestrengthsandweaknessesofthetheories.Onecouldarguethatsuchanin-depth understanding of theories is not necessary in an introductory class in economics, becausetherewillbeplentyofintermediateandadvancedcoursesthatwillfillthese gaps later on. The reality is, however, that a significant fraction of students gets all of its knowledge from the introductorycourse. It is never too early to educate independentandcriticalminds. Third,mosttextbooksthatIamawareofarenottailoredtotheneedsofabusiness school where students study economics, business administration and maybe law. Economics is about the functioning of institutions and most institutions have a legalbackbone.Bringingthisfacttotheforegroundcreatessynergiesbetweenlaw and economics. By the same token, economic theory allows one to identify the key parameters that a firm must know in order to be successful in the markets in which they compete. Examining the common ground between management and economics allows one to better understand the implications of different market contextsandindustriesformanagersanditshowsonehowcloselyeconomicsand business administration can and should be linked. Economics, law and business administrationarereallythree perspectivesonthe samephenomenon:thelogicof socialinteraction. This book took shape over many years during which I have been teaching “Principles of Economics” and “Microeconomics” to undergraduate students. I would like to thank all of my former students for their patience and for their countlessdiscussionsthat allcontributed,in their own ways, to this book.Special thanks are due to my present and former Ph.D. students and research assistants PhilippDenter,MagnusHoffmann,HendrikRommeswinkelandDanaSisak,allof whomhada majorinfluenceonthe contentandthe didacticsofthis book.Thisis also true for Thomas Beschorner, Friedrich Breyer, Claudia Fichtner, Jürg Furrer, MichaelHeumann,NormannLorenz,IngoPies,AlfonsoSousa-PozaandAndreas Wagener, who gave me me detailed feedback on earlier versions of the book and helped me with valuable suggestions. I would also like to thank Maya G. Davies, CorinneKnöpfel,LeopoldLerach,JanRissandJanSerwart,whosupportedmein finishingthisbookandwhodidagreatjobinmakingitmorestudentfriendlyand accessible.Itisdefinitelynottheirfaultifyoufindyourselfstrugglingwithsomeof thematerial. St.Gallen,Switzerland MartinKolmar May2017