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Extensions of Demand and Supply Analysis

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Chapter 4:
Extensions of Demand and Supply Analysis
The Price System (market system): an economic system in which relative price change to reflect changes in supply and demand. In fact prices are the signals whether the resource is relatively scarce or abundant.
Market is the exchange arrangements of both buyers and sellers under the forces of supply and demand
The majority of exchanges are voluntary exchanges in markets.
Voluntary exchange: is the act of trading between individuals to make both parties better off. The term of exchange is usually the price paid for desired products and is determined by supply and demand
Transaction costs: the costs of negotiating and enforcing contracts, acquiring and processing information about alternatives. This means all the costs involve with the exchange.
Some of the effects of the market mechanism * Prices are determined by the forces of demand and supply and provide signals about what should be bought and what should be produced. * Resources are used to their highest-valued uses by means of prices * Transactions costs are reduced because the organized markets imply lower transaction costs * Using the role of specialized individuals (middlemen) facilitates Exchange activities, which brings the buyers and sellers and therefore lowering transaction costs.
The impact of Changes in demand with supply stable:
- Increase in demand holding supply curve constant means that when demand curve shifts from D1 to D, equilibrium price increases from P1 to P2, and equilibrium quantity increases from Q1 to Q2 * A decrease in demand with supply curve stable: is the graph that shows when demand curve shifts from D1 to D3 (a decrease), equilibrium price and quantity falls.
The impact of Changes in supply without demand change * An increase in supply holding demand constant means that a shift of the supply

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