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Total Revenue
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Price x Quantity
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Explicit Costs
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The monetary payment a firm must make to an outsider to obtain a resource.
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Implicit Costs
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Indirect, non-purchased, or opportunity costs of resources provided by the entrepreneur
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Total Economic Cost
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Sum of opportunity costs of market-supplied resources plus opportunity costs of owner-supplied resources.
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Porter's Five Forces
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threat of entry, threat of substitute, supplier power, buyer power, and competitive rivalry
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Threat of Entry
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the risk that potential competitors will enter an industry
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Threat of Substitute
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The power of customers to purchase alternatives. High when there are many alternatives to a product or service and low when there are few alternatives.
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Supplier Power
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The suppliers' ability to influence the prices they charge for supplies
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Buyer Power
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the ability of buyers to affect the price they must pay for an item
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Competitive Rivalry
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the ongoing set of competitive actions and competitive responses that occur among firms as they maneuver for an advantageous market position
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Economic Incentives
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gains and losses
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Moral Incentives
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do the right thing
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Consumer - Producer Rivalry
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Consumers attempt to locate low prices, while producers attempt to charge high prices
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Social Incentives
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one's behavior is based on what is socially accepted/ desired
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Consumer - Consumer Rivalry
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Scarcity of goods reduces consumers' negotiating power as they compete for the right to those goods.
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Producer - Producer Rivalry
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Scarcity of consumers causes producers to compete with one another for the right to service customers.
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Time Value of Money
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Money's potential to grow in value over time. The relationship between time, money, a rate of return, and earnings growth.
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Present Value Analysis
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PV = FV/((1 + i)^n)
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Marginal Analysis
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To analyze extent decisions, we break down the decision into small steps and compute the costs and benefits of taking another step.
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Marginal Revenue (MR)
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The additional revenue gained from selling one more unit.
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Marginal Cost (MC)
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The additional cost incurred by producing and selling one more unit.
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The Economic Decision Rule
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If the marginal benefits of doing something exceed the marginal costs, do it. If the marginal costs of doing something exceed the marginal benefits, don't do it.
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Quantity Demanded
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the amount of a good or service that a consumer is willing and able to purchase at current market price
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Demand
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the amount of a good or service that consumers are willing and able to buy at all market prices
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Law of Demand
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consumers will buy more of a good when its price is lower and they buy less when its price is higher
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The Linear Demand Function
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An equation in the form Qd = a - bP which shows the relationship between the price and the quantity of a product demanded.
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Price Ceiling
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A maximum price that can be legally charged for a good or service.
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Price Elasticity of Demand
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a measure of how much the quantity demanded of a good responds to a change in the price of that good, computed as the percentage change in quantity demanded divided by the percentage change in price
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Determinants of Elasticity of Demand
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- the availability of one or more substitute goods
- necessity or luxury good (the more a good is thought to be an absolute necessity the less the demand will be affected due to any price change)
- time (a longer time frame allows consumers to adjust their behavior)
- portion of income
- payer
- necessity or luxury good (the more a good is thought to be an absolute necessity the less the demand will be affected due to any price change)
- time (a longer time frame allows consumers to adjust their behavior)
- portion of income
- payer
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Utility
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Measures one's satisfaction from participating in an economic activity
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Ceteris Paribus
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all other things held constant
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Indifference Curve
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A curve that shows consumption bundles that give the consumer the same level of satisfaction.
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Marginal Rate of Substitution (MRS)
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the rate at which a consumer would be willing to trade off one good for another
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Budget Constraint
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the limited amount of income available to consumers to spend on goods and services
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Utility Maximizing
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the primary goal of a consumer is to gain the most value possible from scarce resources