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THE STUDY OF INDIVIDUAL CHOICES CONCERNING THE USE OF RESOURCES AMONG COMPETING WANTS TO MAXIMIZE WEALTH. Scarcity . All resources are limited So, people cannot obtain all that they want they must make a sacrifice or in more economic terms, “Pay a Cost”
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THE STUDY OF INDIVIDUAL CHOICES CONCERNING THE USE OF RESOURCES AMONG COMPETING WANTS TO MAXIMIZE WEALTH
Scarcity • All resources are limited • So, people cannot obtain all that they want • they must make a sacrifice • or in more economic terms, “Pay a Cost” • Scarcity forces YOU to choose among alternatives
Resources – What are they? • Land • Human capital (Labor) • Physical capital • Entrepreneurship
Economics – a way of analyzing choices concerning use of resources • Ultimate Goal of Economics: Maximize individual and societal wealth • Wealth is the subjective evaluation of well being • Economic thinking can be used to maximize your own individual wealth. • Economics can be used for social policy to maximize wealth for all members of a society.
Here’s the Deal • Resources are insufficient to satisfy our unlimited wants. • “We can’t have everything we want.” • We must make choices – inevitable reality • Choices require decisions between alternatives • Alternatives create winners and losers • So we should be careful about the choices we make.
Benefit/Cost Analysis • State the goal and identify the resources available to reach the goal. • Identify alternative ways to use the resources to achieve the goal. • Narrow the alternatives to two. Evaluate the advantages and disadvantages of each alternative. • Select the best choice,based on available information • The choice not selected is called the opportunity cost.
Keep in mind • The choice is the alternative selected. • The opportunity cost is the alternative not selected, the opportunity given up. • Every choice has a cost; there is no such choice as a free choice. • DISADVANTAGES ARE NOT COSTS. There is only one cost to each choice.
Marginal A little more or a little less. Compare benefits and cost of two alternatives
The Solution: Marginal Analysis • Every resource use has a benefit and an opportunity cost. • We should only use the resource in that activity if the benefit outweighs the OC. • Marginal analysis tells us how much of each resource to use in each activity.
Using Marginal Benefit/Marginal Opportunity Cost Analysis • Investigating two alternatives • What’s the difference in benefits between the two? • Is the marginal benefit of the choice greater than the marginal OC?
The Marginal Principle • How far should I pursue any single activity, knowing that the resources I am using have opportunity costs; they could be doing other things? Ex. You can’t please everyone • If the marginal benefit is greater than the marginal opportunity cost, go for it; otherwise, go back!
Using Marginal Analysis • How long should I wait in the lunch line? • As long as the marginal (additional) benefit of getting hot lunch outweighs or is MORE than the marginal cost of time lost with friends. • As long as MB (Marginal Benefit) is > MC (Marginal Cost) • How long should I continue dating my boyfriend? • As long as the marginal (additional) benefit of seeing him is greater than the marginal (additional) cost of seeing better guys. • MB > MC • How long should I study for the unit test? • As long as the marginal (additional) benefit of studying is MORE than the marginal cost of no sleep. • MB > MC
Opportunity Cost Use opportunity cost to explain the following
Why farmers often wait until a rainy day to do errands in town, while a businessman in a new suit will decide to forego his errands on the same day. • The opportunity cost (OC) for a farmer doing errands in town on a rainy day is lower than the OC for a businessman doing errands in town on the same day
Why businessmen often buy full-fare tickets while people planning vacations fly when rates are lower • The opportunity cost for a businessman buying full-fare tickets is higher than that of a family planning a vacation
Why movie stars, fashion models and rock-singers have higher divorce rates than the rest of the American population • The opportunity cost for a rock star getting divorced are lower than the opportunity cost are for the rest of the American population to get divorced
Law of Diminishing Returns • Output will ultimately increase by progressively smaller amounts when the use of a variable input increases while other inputs are held constant *The point at which spending more time will result in lesser return
Example • Ms. Joy decides to start a zucchini garden • Year 1 she harvests 20 zucchini! • Year 2 she uses 1 pound of fertilizer which results in 30 zucchini!! • Year 3 she uses 2 pounds of fertilizer 35 zucchini • Year 4 she uses 3 pounds of fertilizer 37 zucchini • Year 5 she uses 4 pounds of fertilizer 33 zucchini – less than before…hmmmmmm • Year 6 she uses 5 pounds of fertilizer 5 zucchini…all the rest were killed before flowering
The Principle of Exchange People will exchange if they gain more than they give; if the value of the choice is greater than the opportunity cost.
How do we get what we want? • Scarcity causes goods and services to be rationed • How do we do this? • Who decides on the mechanism?
Rationing Methods • First-Come, First-Served • Merit or Need • Arbitrary - Age, Hair Color, Shoe Size • Price--a Market System
Advantages of a Price System • Anonymous - Participants may not know each other’s characteristics • Market provides variety • Compare relative prices (i.e., opportunity cost) • Common Currency - No question of value • Individual choice to participate
The Market One way to allocate scarce goods and services
Relative prices: why? $50,000 $5
Because Scarcity Exists: • Scarce goods have to be rationed. • Some folks will be told “NO!!!” • It’s not fair, everyone will not be happy.
Order these products in terms of relative scarcity • a candy bar • a yacht • a Toyota mini truck • a nice dinner for two in LA • a ticket to a professional baseball game • dinner for one at MacDonald’s • a laptop computer
Order these products in terms of relative scarcity 7 a candy bar 1 a yacht 2 a Toyota mini truck 4 a nice dinner for two in LA 5 a ticket to a professional basketball game 6 dinner for one at McDonald’s 3 a laptop computer
Price • The measure of relative scarcity • If a product becomes relatively more scarce, the price will rise. • If a product becomes relatively less scarce, the price will fall.
Necessary Components for a Market • Competition • Information • Property Rights • Incentives
Property Rights • With well defined property rights, owners have incentives to preserve, develop, and improve resources • Without well defined property rights, people have incentives to use resources as quickly as possible • over fishing • The buffalo
Three Economic Questions 1. What goods will be produced - What does an economy need to produce to keep its people alive/happy? 2. How will the goods be produced - Should government produce things? - Should things be produced by private citizens? - Why? 3. Who gets what is produced - Will everyone automatically get what is needed? - How will you decide who gets what?
Three Types of Economic Systems 1. Traditional Economy - economic decisions made based on tradition, customs, cultural beliefs - self-sufficient, pre-industrial groups - little or no outside trade – barter system
2. Command Economy, Socialism Government ownership of all means of production – all business (factories, farms) -The “THEORY” Everyone contributes according to their ability and receives according to their need
Advantagesof Socialism - guaranteed employment - guaranteed housing - free education - free medical care
Disadvantages of socialism - little incentive to work hard (why??) - inefficient methods of production (more jobs) - inhibits innovation, creativity (no self-interest) - consumer has little choice (no competition)
3. Market Economy, Capitalism, Free Enterprise System - all business decisions are made by business owners and consumers - all decisions based on self-interest Self-interest is the motivator - competition is essential Competition is the regulator - property rights are protected - prices fluctuate based on interaction of supply and demand
Advantagesof capitalism - hard work is rewarded *overtime pay, raise, promotion - innovation is encouraged – increase profit - flexibility – change happens easily - quality goods are produced and sold at a fair price (competition)
Disadvantages of capitalism - unequal distribution of income *few rich, some middle, some poor - financial insecurity bankruptcy, unemployment - high cost of education, health care - subject to inevitable swings of the Business Cycle
Reality Check Modern national economies are all a mix of some capitalism and some socialism – Mixed Economies United States - minimum wage, social security, medicare, anti-monopoly legislation China – encourages individuals to own businesses and make profit North Korea – closest to pure socialism