fixed cost		an alternative that we choose when we make a decision
microeconomics		the price for the use of borrowed money, or money earned by deposited funds
shortage		the amount of goods available
scarcity		an intem that we desire but it not essential to survival
infrastructure		a tax on the dollar value of a good or service being sold
Thinking at the Margin		the system that allows the transfer of money between savers and borrowers
profit		income not used for consumption
Trade-Off		deciding whether to do or use one additional unite of some resource
specialization		the service and facilities necessary for an economy to function
balance of trade		a cost that rises or falls depending on how is produced
balanced budget		one that acquires goods or services for direct use or ownership rather than for resale or use in production and manufacturing
consumer		budget in which revenues are equal to spending
substitute		quantity demanded is greater than quantity supplied
opportunity cost		all human-made goods that are used to produce other goods and services
financial system		limited quantities of resources to meet unlimited wants and needs
World Bank		a cost that does not change no matter how much of a good is produced is produced
interest		the financial gain made in a transaction
physical capital		the difference in value between the total exports and total imports of a nation
supply		the largest porvider of development assistance
variable cost		the study of the economic behavior and decision making of small units, such as individuals, families, businesses
inelastic		the most desirable alternative given up as the result of a decision
sales tax		a government payment that supports a business or market
subsidy		describes demand that is NOT very sensitive to a change in price
saving		goods used in palce of each other
want		the concentration of the productive efforts of individuals and firms on a limited number of activities