Microeconomics, Supply, Demand, and Economic Models
This paper introduces foundational concepts in economics, beginning with a definition of the discipline and its market-based framework. It distinguishes microeconomics from macroeconomics, tracing the field's historical development from Nicholas Bernoulli's early theories of rational consumer choice through Alfred Marshall's formal establishment of the discipline. The paper explains the laws of supply and demand, discusses market failures such as monopolies, and identifies external factors — including natural disasters, government policy, and technological change — that shift supply and demand. It concludes by examining whether economics qualifies as a science and explaining why economists rely on simplified models, including their limitations when underlying assumptions fail to reflect reality.
- Introduction to Economics and the Market System: Defines economics, scarcity, and the market system
- Defining Microeconomics and Its Historical Development: Origins and evolution of microeconomic theory
- Market Failure, Utility, and the Law of Supply: Monopolies, utility theory, and supply behavior
- The Law of Demand and Giffen Goods: Price-demand relationship and essential goods
- Factors That Cause Changes in Supply and Demand: External forces shifting market equilibrium
- Economics as a Science and the Role of Models: Models, causality, and the science debate
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What makes this paper effective
- Clear definitional structure: each major concept is introduced with a formal definition before being developed analytically, making the paper easy to follow for introductory-level readers.
- Good use of concrete examples — the BP Deepwater Horizon oil spill, gasoline as a Giffen good, and high-tech manufacturing costs — to ground abstract economic principles in real-world contexts.
- The paper maintains logical progression, moving from broad definitions down to specific mechanisms (utility, ceteris paribus) and then outward again to the philosophical question of whether economics is a science.
Key academic technique demonstrated
The paper demonstrates effective concept scaffolding: it builds from the general (economics, scarcity) to the specific (microeconomics, market failure, utility) and then introduces complicating nuance (model limitations, the science debate). Each section prepares the reader for the next, showing how foundational terms support more complex arguments.
Structure breakdown
The paper opens with a broad definition of economics and the market system, then narrows to microeconomics and its historical origins. It covers the laws of supply and demand in sequential sections, followed by a survey of external factors affecting markets. The final section addresses the philosophical status of economics as a science and critically evaluates the role and limitations of economic models. Six clearly delineated sections mirror a typical introductory economics survey format.
Introduction to Economics and the Market System
Economics is defined as the study of how society allocates limited resources and goods (Encyclopedia Britannica, 2009). Resources include inputs such as labor, capital, and land, which are used to produce goods. Goods include products such as food and clothing, as well as services such as those provided by barbers, doctors, and firefighters. Goods and resources are often deemed scarce because of society's demand for them relative to their availability (Stapleford, 2012). Economics, then, becomes the study of how goods and resources are allocated when scarce. It also allows us to anticipate the outcomes of changes in governmental policies, company practices, population shifts, and similar developments.
The market system is one avenue economists use to allocate scarce resources. A market is defined as any system or arrangement where trade takes place (Encyclopedia Britannica, 2009). In the United States, several markets are trading at all times. The study of the market system falls into two branches: macroeconomics and microeconomics.
Defining Microeconomics and Its Historical Development
Microeconomics is the study of the economic behavior of individual firms, consumers, and industries, and the distribution of total production and income among them (Encyclopedia Britannica, 2009). Microeconomics allows economists to analyze the market in order to establish the average price point for goods and services. This analysis also aids in the allocation of society's resources among all potential uses (Funderburk, 2012).
This branch of economics first emerged when economists began analyzing consumer decision-making processes and outcomes in the early 18th century (Stapleford, 2012). The first in-depth explanation of the discipline came from a Swiss mathematician named Nicholas Bernoulli, who laid the groundwork for microeconomic theory by suggesting that consumer choices are always rational. In the late 19th century, London economist Alfred Marshall proposed examining individual markets and firms as a way to understand the broader economy. It was then that microeconomics became formally established as a field of study.
In the mid-20th century, the concept of market failure led to the modern definition of microeconomics (Funderburk, 2012). Market failure refers to situations in which market operations prevent the efficient allocation of resources. Today, microeconomists are primarily concerned with analyzing market failure and suggesting ways to prevent or mitigate it (Stapleford, 2012). This is typically accomplished through public policy and/or government intervention.
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