What Is Economics?
Economics is the study of how people choose to use resources.
Resources include the time and talent people have available, the land, buildings, equipment, and other tools on hand, and the knowledge of how to combine them to create useful products and services.
Important choices involve how much time to devote to work, to school, and to leisure, how many dollars to spend and how many to save, how to combine resources to produce goods and services, and how to vote and shape the level of taxes and the role of government.
Often, people appear to use their resources to improve their well-being. Well-being includes the satisfaction people gain from the products and services they choose to consume, from their time spent in leisure and with family and community as well as in jobs, and the security and services provided by effective governments. Sometimes, however, people appear to use their resources in ways that don't improve their well-being.
In short, economics includes the study of labor, land, and investments, of money, income, and production, and of taxes and government expenditures. Economists seek to measure well-being, to learn how well-being may increase over time, and to evaluate the well-being of the rich and the poor. The most famous book in economics is the Inquiry into the Nature and Causes of The Wealth of Nations written by Adam Smith, and published in 1776 in Scotland.
Although the behavior of individuals is important, economics also addresses the collective behavior of businesses and industries, governments and countries, and the globe as a whole. Microeconomics starts by thinking about how individuals make decisions. Macroeconomics considers aggregate outcomes. The two points of view are essential in understanding most economic phenomena.
The list of fields in economics illustrates the scope of economic thought.
Definitions of Economics from Historic Textbooks
"Economics is the study of people in the ordinary business of life."
-- Alfred Marshall, Principles of economics; an introductory volume (London: Macmillan, 1890)
-- Alfred Marshall, Principles of economics; an introductory volume (London: Macmillan, 1890)
"Economics is the science which studies human behavior as a relationship between given ends and scarce means which have alternative uses."
-- Lionel Robbins, An Essay on the Nature and Significance of Economic Science (London: MacMillan, 1932)
-- Lionel Robbins, An Essay on the Nature and Significance of Economic Science (London: MacMillan, 1932)
Economics is the "study of how societies use scarce resources to produce valuable commodities and distribute them among different people."
-- Paul A. Samuelson, Economics (New York: McGraw-Hill, 1948)
-- Paul A. Samuelson, Economics (New York: McGraw-Hill, 1948)
What are the fields in economics?
Economists organize their discipline in fields from agricultural economics to urban economics. Many economists specialize in a field by publishing original essays on topics and teaching courses in a specific field.
The fields are in two sets: Those that develop core skills and those that emphasize application of the skills in specific settings. The core itself involves two modes of analysis. TheSkills page gives simple examples. First, mathematical description of economic phenomena allows derivation of relationships. This mode of thought is called economic theory. Mathematics allows arguing by deductive reasoning from stated premises to a conclusion. It offers the internal consistency of mathematical proofs but requires no evidence of applicability.
The second core method looks for evidence based on observing economic phenomena. It draws inference from persistent patterns. A consistent pattern that is distinct from the complexity and randomness in nature is likely to have meaning. This mode of thought is called inductive reasoning. It is the mode of analysis of economic historians, statisticians, and experimenters. The study of formal methods for drawing inferences from statistical evidence in economics is called econometrics.
Many advances in economic understanding come from the interaction between deduction and induction. When mathematical analysis yields new insights, the historians, statisticians, and experimenters look for ways to judge whether available evidence is consistent with the theory. When observation shows phenomena that are inconsistent with available theories, economic theorists look for new theories. The core fields are in item C on the list of fields shown below.
Most economists concentrate their work and teaching in an applied field, that is, in the other categories shown below. They study the history of the phenomena and adapt the core theoretical ideas of economics to offer explanations. They develop a variety of methods to observe and measure events and apply econometric methods to test hypotheses. For example, international economists study the history of trade, balance of payments, and exchange rates. They will understand both the economic theories and the econometric findings that explain international economic phenomena.
The fields of economics, however, have fuzzy boundaries because economic events are interconnected. Every transaction has a buyer and a seller; each economic event has extended consequences. A change in a wage rate will affect the cost of the goods the workers produce as well as change the income and consumption patterns of the workers’ households. An economist working in one field will be aware of connections to the rest of the economy.
The fields of economics, then, are more signposts than fences. They include the core areas of mathematical and statistical methods as well as the many arenas in which the core methods are applied. Most undergraduate Programs include study in the core fields and in a selection of applied fields. The standard classification of economic fields given below appears in the Journal of Economic Literature . These field labels provide enduring markers on the terrain of economic thought.
Journal of Economic Literature Classification of Fields
A. General Economics and Teaching -- The principles course in the economics curriculum develops core ideas. The course also provides the big picture of how individual economic events fit together to shape aggregate outcomes. Mastering basic ideas and getting a sense of how the parts fit into the whole is an essential entry point to the study of other fields and more advanced ideas in economics. The A category also includes discussion of the teaching of economics.
B. Schools of Economic Thought and Methodology -- Economists who study the history of economic thought investigate how the core ideas in economics have developed.
C. Mathematical and Quantitative Methods -- Econometricians develop methods to measure economic phenomena. They apply the scientific method by formulating hypotheses, gathering evidence, and judging whether the evidence is consistent with the hypotheses. Mathematical economists develop tools for finding optimal solutions to economic problems and advance ideas in game theory. Game theory is the method for analyzing how one player chooses strategies in light of knowledge of the possible strategies a rival might choose. Game theory is used to analyze many economic phenomena including the interaction between firms. In recent decades, experimental economists have tested economic theories in laboratories and in the field.
D. Microeconomics -- Studying how markets function and the role of prices is of central concern in understanding economics. Investigation of the behavior of individual households, firms, and prices and quantities of specific products like automobiles is called microeconomics. Behavioral economists study the cognitive and emotional dimensions of economic decisions.
E. Macroeconomics and Monetary Economics -- The actions of individuals sum to the total activity in a whole economy. In the aggregate, the total amount of products consumed by households and firms must equal the total amount produced. The total amount firms pay to workers and investors must equal the amount households receive in income. Study of the aggregate relationships in an economy is called macroeconomics. Economic growth, the role of money and interest rates, and changes in the overall level of prices and the aggregate level of unemployment are central concerns of macroeconomics.
F. International Economics -- International economists study trade among nations and the flow offinance across international borders. Globalization and the deficit in the U.S. balance of payments with other countries are current concerns.
G. Financial Economics -- Financial economists study the process of saving and investing with a specific concern for how individuals and firms deal with risk.
H. Public Economics -- Public finance economists consider the role of government in the economy. Some focus on evaluating government programs and others focus on the design of tax systems. Public finance economists are also interested in how the political process makes decisions. Issues of national security and defense appear here as well the study of state and local governments.
I. Health, Education, and Welfare -- Some economists focus on the markets and government policies that directly shape access to health care. Others focus on schools and educational policies. Still others consider the economic circumstances of the poor and evaluate alternative government programs to improve the well-being of the poor.
J. Labor and Demographic Economics -- Labor economists study employers’ decisions to hire workers and employees’ decisions to work. They study how wages are set, the nature of incentives workers face, and the role of minimum wage laws, unions, pensions plans, and training programs. They are also interested in the formation of families, determinants of birth rates, migration, population change, and aging.
K. Law and Economics -- Some economists use the tools of economics to study the incentives for human behavior that are defined by the legal system. Property rights, for example, are essential for markets to work well but they can be defined in a variety of ways that have different effects on the well-being of people.
L. Industrial Organization -- IO is the study of individual markets, the nature of competition, and the role of prices. Some economists study issues in anti-trust policy. Others study the role of advertising, pricing policies, and how costs vary with the scale of operations. Some IO economists investigate particular industries such as appliances, software, and electricity. In the last decade a number of economists have studied economic issues in sports, recreation, and tourism.
M. Business Administration and Business Economics, Marketing, Accounting -- Business economists study decisions made by firms. How do firms maximize profit? What prices should they set and how much should they produce? What is the role of incentives within the firm, of entrepreneurship, and leadership?
N. Economic History -- Economic historians explore changes in economic well-being and how economic institutions have developed. The emergence of markets, the forces shaping the industrial revolution, the sources of improvements in agricultural productivity, the influence of railroads and other new technologies provide perspective on current economic issues.
O. Economic Development, Technical Change, and Growth -- Economists who are interested in the development of economies often focus on third world countries. Why have some countries developed while others have not? How might the industrialized countries improve the prospects for development around the world? Who gains and who loses with industrialization?
P. Economic Systems -- Analysts compare the capital market system to the various forms of socialism and the transition from centrally planned to more market-based economic systems. Economists sometimes address issues in specific countries like China, Cuba, and Poland.
Q. Agricultural and Natural Resource Economics, Environmental and Ecological Economics --Economists study farming, fishery, and forests with a focus on prices, markets, and changing technologies. Natural resource economists study markets for energy (oil, coal, and electricity) and mineral resources. Economists have played an important role in the evolution of policies to promote clean air, water, and land.
R. Urban, Rural, and Regional Economics -- Economists analyze the location decisions of households and firms and the associated issues in housing, transportation, and local government.
Y. Miscellaneous Categories -- Data, dissertations, and book reviews are classified here.
Z. Other Special Topics -- Other special topics include the economics of the arts, religion, andculture.
Current Issues in Economics
Economists study changes occurring in specific countries or individual sectors of an economy; some ask fundamental questions about the nature of economic decisions; some address proposals to change government policies.
Leading economists develop issues in two lecturessponsored by the American Economic Association at its annual meeting. The address of the President of the Association and an invited lecture called the Ely Lecture, named for a founder of the Association, discuss issues of the speakers' choice. More economists define their own issues in symposia where they present their work. The symposia sometimes address more focused topics than the newspaper headlines and also develop deeper understanding of economic phenomena. Economists from all over the world present their latest research at theAnnual Meetings of the American Economic Association and economic agencies publish annual reports that discuss significant issues for the nation and the world.
What careers follow the economics baccalaureate?
Economics majors are successful in a wide variety of careers. Although various roles in businesses are most common, economics majors are successful in law, medicine, government, non-profits, and international relations, as well as in academic roles.
Career Earnings
One way to think about career opportunities is to consider the level of earnings typically found with different levels and kinds of education in different careers.
One way to think about career opportunities is to consider the level of earnings typically found with different levels and kinds of education in different careers.
The Corporate World & the MBA
Most economics majors pursue employment in the private sector. Graduates in economics succeed in many occupations. Some students plan to earn the Masters of Business Administration (MBA) degree in time. Others find employment with the BA is sufficient to fulfill their aspirations.
Most economics majors pursue employment in the private sector. Graduates in economics succeed in many occupations. Some students plan to earn the Masters of Business Administration (MBA) degree in time. Others find employment with the BA is sufficient to fulfill their aspirations.
Economic Consulting
Some economists with BA degrees find employment as research associates with economic consulting firms. Consultants advise firms on business strategies, prepare economic evidence for court cases, and develop analyses to influence public policy.
Some economists with BA degrees find employment as research associates with economic consulting firms. Consultants advise firms on business strategies, prepare economic evidence for court cases, and develop analyses to influence public policy.
Law and Other Professions
Law school is also a common destination for recent graduates in economics. The careful reasoning in economics is a good fit for law and many careers in the law influence significant economic decisions for firms.
Law school is also a common destination for recent graduates in economics. The careful reasoning in economics is a good fit for law and many careers in the law influence significant economic decisions for firms.
Government and Not-for-profits
Some students enter government service or choose jobs with non-profit entities. Governments at every level hire economists for their facility with statistics and analysis.
Some students enter government service or choose jobs with non-profit entities. Governments at every level hire economists for their facility with statistics and analysis.
Professors, Teachers and Researchers of Economics
Some graduates in economics are interested in academic careers. They are drawn by the love of the study of economics and the prospect of teaching and writing about economics as a career
Some graduates in economics are interested in academic careers. They are drawn by the love of the study of economics and the prospect of teaching and writing about economics as a career
Government and Not-for-profits
Governments at every level hire economists to manage and evaluate their operations. The Office of Personnel Management (OPM) of the Federal government provides information about Federal employment opportunities. Their USAJobs site lists thousands of openings of all kinds in many locations across the country. Search on "economist" to find information about specific current opportunities. There are often openings for economists with BA, MA, and PhD degrees.
The OPM website also gives general information about Federal pay scales. BA economists with little experience are (to simplify a bit) at grade GS-7, with MAs at GS-9, and new PhDs start at GS-12. Although pay does differ with the cost of living in different locations, BA economists started at $31,209 or above in 2006.
The Federal Reserve Board and its affiliated regional Federal Reserve Banks also hire economists and research assistants at various levels of education. Skill with statistics and in managing data will be helpful for many entry jobs.
Economists are valued in the Foreign Service and civil service in the State Department, and as analysts with the Central Intelligence Agency.
State governments have similar websites that list public service jobs with pay scales and application procedures. Searching the Internet for "state employment" will usually yield an appropriate link.
International agencies of many kinds hire economists for a variety of roles. Additional languages, strong communication skills, experience with diverse cultures, and statistical skills are often important. TheWorld Bank, for example, offers jobs for economists. The Bank has an internship program as well.
One way to learn about employment with non-profits is to go to the Idealist website and look for roles in economic development or other areas of interest.
Professors, Teachers and Researchers of Economics
he Doctor of Philosophy degree (PhD) in economics is necessary for a faculty position in economics at most four-year colleges in the US. A masters degree is the typical credential for faculty at two-year colleges. Although some students complete masters programs before entering PhD programs, many go directly from BA programs into PhD programs. Completion of a PhD requires about six years of full-time study. See the AEA website for information about graduate study. Holders of the Ph.D. often also choose research careers outside of academics, including roles at the Federal Reserve, international agencies, and government policy and evaluation departments as well as in private banks, investment houses, and other for-profit ventures
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