Hey, guys. Let's go ahead and define some key terms that'll help us understand and answer the question, what is economics? So our first term here, scarcity, it's the idea that in this world we have unlimited wants, but only limited resources to fulfill those wants. Right? So, for example, you know, my wants, I want a new guitar. I love to travel. Shoot. I'd even love to go to the moon. But it's gonna be kinda tough. Right? What kind of resources do I have? I definitely don't have a spaceship, so that's not gonna be happening anytime soon. I've got my time. So if I were to travel, yeah, I'd have the time for it, but what about the money? I don't have the money right now. I've got well, I've got my empty bank account. At least I have that. Maybe I can put some money in it eventually. So that's the idea. Right? We're gonna have to pick our battles here. We've only got limited resources and we've got all sorts of things that we're gonna want in this world. It kinda leads us to our next topic, trade-offs. It's the idea that we have to give up one thing to get something else. So for example, tonight, I've been planning to go to the Panthers game with my dad for a while here. Panthers, the Florida Panthers, that's our hockey team down here. And just last night, my friend calls me that there's a big party happening tonight, and all my friends are gonna be there. Well, I'm gonna have to pick 1 or the other here, right, and I'm spoiler alert I'm not gonna sell out my dad so I'll go to the Panthers game tonight. But it's not always 2 things that we're choosing between. What if it's your day off and you just wanna go to the beach? Right? Maybe you got the day off. Let's go to the beach. What are you giving up to go to the beach? Well, the opportunity to just stay home. Right? You could have just stayed home instead. Just relax at home. So, you know, there's always something you're giving up, and that's the idea of an opportunity cost, The value of the next best alternative to a choice. Right? So a good example is something you'll probably relate to, going to college. Right? When you go to college, you're giving up the opportunity to get a full-time job right away. Right? Maybe some of you have part-time jobs. I'm sure a lot of you are full-time students too though. The idea here is that when you go to college, yes, you have all the costs of college tuition, fees, room and board, books, right? But there's also that opportunity cost of having gotten a job right away. So you're giving up all that money you could have already been making. So with these concepts, let's define economics.
- 1. Introduction to Macroeconomics1h 57m
- 2. Introductory Economic Models59m
- 3. Supply and Demand3h 43m
- Introduction to Supply and Demand10m
- The Basics of Demand7m
- Individual Demand and Market Demand6m
- Shifting Demand44m
- The Basics of Supply3m
- Individual Supply and Market Supply6m
- Shifting Supply28m
- Big Daddy Shift Summary8m
- Supply and Demand Together: Equilibrium, Shortage, and Surplus10m
- Supply and Demand Together: One-sided Shifts22m
- Supply and Demand Together: Both Shift34m
- Supply and Demand: Quantitative Analysis40m
- 4. Elasticity2h 26m
- Percentage Change and Price Elasticity of Demand19m
- Elasticity and the Midpoint Method20m
- Price Elasticity of Demand on a Graph11m
- Determinants of Price Elasticity of Demand6m
- Total Revenue Test13m
- Total Revenue Along a Linear Demand Curve14m
- Income Elasticity of Demand23m
- Cross-Price Elasticity of Demand11m
- Price Elasticity of Supply12m
- Price Elasticity of Supply on a Graph3m
- Elasticity Summary9m
- 5. Consumer and Producer Surplus; Price Ceilings and Price Floors3h 40m
- Consumer Surplus and WIllingness to Pay33m
- Producer Surplus and Willingness to Sell26m
- Economic Surplus and Efficiency18m
- Quantitative Analysis of Consumer and Producer Surplus at Equilibrium28m
- Price Ceilings, Price Floors, and Black Markets38m
- Quantitative Analysis of Price Ceilings and Floors: Finding Points20m
- Quantitative Analysis of Price Ceilings and Floors: Finding Areas54m
- 6. Introduction to Taxes1h 25m
- 7. Externalities1h 3m
- 8. The Types of Goods1h 13m
- 9. International Trade1h 16m
- 10. Introducing Economic Concepts49m
- Introducing Concepts - Business Cycle7m
- Introducing Concepts - Nominal GDP and Real GDP12m
- Introducing Concepts - Unemployment and Inflation3m
- Introducing Concepts - Economic Growth6m
- Introducing Concepts - Savings and Investment5m
- Introducing Concepts - Trade Deficit and Surplus6m
- Introducing Concepts - Monetary Policy and Fiscal Policy7m
- 11. Gross Domestic Product (GDP) and Consumer Price Index (CPI)1h 37m
- Calculating GDP11m
- Detailed Explanation of GDP Components9m
- Value Added Method for Measuring GDP1m
- Nominal GDP and Real GDP22m
- Shortcomings of GDP8m
- Calculating GDP Using the Income Approach10m
- Other Measures of Total Production and Total Income5m
- Consumer Price Index (CPI)13m
- Using CPI to Adjust for Inflation7m
- Problems with the Consumer Price Index (CPI)6m
- 12. Unemployment and Inflation1h 22m
- Labor Force and Unemployment9m
- Types of Unemployment12m
- Labor Unions and Collective Bargaining6m
- Unemployment: Minimum Wage Laws and Efficiency Wages7m
- Unemployment Trends7m
- Nominal Interest, Real Interest, and the Fisher Equation10m
- Nominal Income and Real Income12m
- Who is Affected by Inflation?5m
- Demand-Pull and Cost-Push Inflation6m
- Costs of Inflation: Shoe-leather Costs and Menu Costs4m
- 13. Productivity and Economic Growth1h 17m
- 14. The Financial System1h 37m
- 15. Income and Consumption52m
- 16. Deriving the Aggregate Expenditures Model1h 22m
- 17. Aggregate Demand and Aggregate Supply Analysis1h 18m
- 18. The Monetary System1h 1m
- The Functions of Money; The Kinds of Money8m
- Defining the Money Supply: M1 and M24m
- Required Reserves and the Deposit Multiplier8m
- Introduction to the Federal Reserve8m
- The Federal Reserve and the Money Supply11m
- History of the US Banking System9m
- The Financial Crisis of 2007-2009 (The Great Recession)10m
- 19. Monetary Policy1h 32m
- 20. Fiscal Policy1h 0m
- 21. Revisiting Inflation, Unemployment, and Policy46m
- 22. Balance of Payments30m
- 23. Exchange Rates1h 16m
- Exchange Rates: Introduction14m
- Exchange Rates: Nominal and Real13m
- Exchange Rates: Equilibrium6m
- Exchange Rates: Shifts in Supply and Demand11m
- Exchange Rates and Net Exports6m
- Exchange Rates: Fixed, Flexible, and Managed Float5m
- Exchange Rates: Purchasing Power Parity7m
- The Gold Standard4m
- The Bretton Woods System6m
- 24. Macroeconomic Schools of Thought40m
- 25. Dynamic AD/AS Model35m
- 26. Special Topics11m
Introduction to Economics - Online Tutor, Practice Problems & Exam Prep
Economics is the social science that studies how individuals and societies make decisions under conditions of scarcity, where unlimited wants meet limited resources. Key concepts include scarcity, trade-offs, and opportunity cost, which highlight the necessity of making choices. Microeconomics focuses on individual and business decisions, while macroeconomics examines the economy as a whole, addressing issues like inflation, unemployment, and economic cycles. Understanding these distinctions is crucial for analyzing economic behavior and policy implications.
Defining Economic Terms:Scarcity, Trade-offs, and Opportunity Costs
Video transcript
Definition of Economics:Micro vs. Macro
Video transcript
Alright. So let's quickly discuss the difference here between microeconomics and what we're studying here, macroeconomics. Economics, in general, is defined as a social science focused on the decisions made by individuals, institutions, and society under conditions of scarcity. The key idea here is scarcity, where we have scarce resources and how we are going to use these resources. The decisions that we make on an individual level and on larger levels as well.
In microeconomics, a course might teach you about the choices that individuals and businesses make, such as how prices affect a market for a certain product, the supply and demand of a product, how a business maximizes its profit, and how many laborers to hire. These are all micro ideas on a small scale, concerning what one business or one person might do in one market.
However, here in this course, we're talking about macroeconomics, which deals with the 'big picture'. We're discussing bigger issues, studying the economy as a whole, focusing on nations, not just national but global economics. We're going to deal with bigger ideas like recessions and what causes recessions, the causes of economic booms, and inflation. We'll explore how inflation affects interest rates and the supply of money, along with issues like unemployment. We aim to understand the reasons why unemployment happens, the types of unemployment that exist, and the effects they have on the economy.
Here in this course, we're focusing on macroeconomics, but you might also encounter questions that ask whether a specific issue deals with microeconomics or macroeconomics. It's good to understand the difference between the two.
Alright, let's go ahead and move on to the next topic.
The opportunity cost of going to a baseball game is
Economics can be best defined as the study of
Here’s what students ask on this topic:
What is the definition of scarcity in economics?
Scarcity in economics refers to the fundamental problem that arises because resources are limited while human wants are unlimited. This means that there are not enough resources to fulfill all our desires and needs. For example, you might want to buy a new car, travel the world, and save for retirement, but you only have a limited amount of money and time. Scarcity forces individuals and societies to make choices about how to allocate their limited resources to satisfy their most important needs and wants. This concept is central to the study of economics as it drives the need for trade-offs and opportunity costs.
What is the difference between microeconomics and macroeconomics?
Microeconomics and macroeconomics are two branches of economics that focus on different levels of analysis. Microeconomics examines the decisions made by individuals and businesses, such as how prices affect the supply and demand of a product, how a business maximizes its profit, and how many workers to hire. It deals with specific markets and the behavior of individual economic agents. On the other hand, macroeconomics looks at the economy as a whole, addressing larger-scale issues like inflation, unemployment, economic growth, and recessions. It studies national and global economic trends and policies. Understanding both is crucial for a comprehensive analysis of economic behavior and policy implications.
What is opportunity cost and why is it important in economics?
Opportunity cost is the value of the next best alternative that is forgone when a choice is made. It represents the benefits you could have received by taking a different decision. For example, if you decide to spend time studying for an exam instead of going out with friends, the opportunity cost is the enjoyment and social interaction you miss out on. In economics, opportunity cost is important because it helps individuals and societies make informed decisions by considering the potential benefits of alternative options. It highlights the trade-offs involved in every decision, ensuring that resources are used efficiently.
How does inflation affect the economy?
Inflation is the rate at which the general level of prices for goods and services rises, eroding purchasing power. When inflation is high, each unit of currency buys fewer goods and services, which can reduce consumer and business spending. This can lead to slower economic growth. Inflation also affects interest rates; central banks may raise rates to control inflation, making borrowing more expensive. Additionally, inflation can impact savings, as the real value of money saved decreases over time. However, moderate inflation is often seen as a sign of a growing economy, encouraging spending and investment.
What causes economic recessions?
Economic recessions are periods of significant decline in economic activity, typically defined by two consecutive quarters of negative GDP growth. Several factors can cause recessions, including high inflation, which reduces purchasing power; high interest rates, which make borrowing expensive; reduced consumer and business confidence, leading to decreased spending and investment; and external shocks, such as natural disasters or geopolitical events. Additionally, financial crises, such as the collapse of major financial institutions, can trigger recessions. Understanding these causes helps policymakers implement measures to mitigate the impact and support economic recovery.