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MANAGING PROJECTS

Projects represent nonroutine business activities that often have long-term strategic ramifications for a firm. In this chapter, we examined how projects differ from routine business activities and discussed the major phases of projects. We noted how environmental changes have resulted in increased attention being paid to projects and project management over the past decade. In the second half of the chapter, we introduced some basic tools that businesses can use when planning for and controlling projects. Both Gantt charts and network diagrams give managers a visual picture of how a project is going. Network diagrams have the added advantage of showing the precedence between activities, as well as the critical path(s). We wrapped up the chapter by showing how these concepts are embedded in inexpensive yet powerful software packages such as Microsoft Project. If you want to learn more about project management, we encourage you to take a look at the Web site for the Proj...

Supply and Demand: How Markets Work

Economists use the model of supply and demand to analyse competitive markets. In a competitive market, there are many buyers and sellers, each of whom has little or no Influence on the market price.
The supply curve shows how the quantity of a good supplied depends on the price. According to the law of supply, as the price of a good rises, the quantity supplied rises. Therefore, the supply curve slopes upward.
In addition to price, other determinants of how much producers want to sell include input prices, technology, expectations, the number of sellers, and natural and social factors. If one of these factors changes, the supply curve shifts.
The demand curve shows how the quantity of a good demanded depends on the price. According to the law of demand, as the price of a good falls, the quantity demanded rises. Therefore, the demand curve slopes downward.
In addition to price, other determinants of how much consumers want to buy include income, the prices of substitutes and complements, tastes, expectations and the number of buyers. If one of these factors changes, the demand curve shifts.
The intersection of the supply and demand curves determines the market equilibrium. At the equilibrium price, the quantity supplied equals the quantity demanded.
The behaviour of sellers and buyers naturally drives markets toward their equilibrium. When the market price is above the equilibrium price, there is a surplus of the good, which causes the market price to fall. When the market price is below the equilibrium price, there is a shortage, which causes the market price to rise.
To analyse how any event influences a market, we use the supply and demand diagram to examine how the event affects the equilibrium price and quantity. To do this we follow three steps. First, we decide whether the event shifts the supply curve or the demand curve (or both). Secondly, we decide which direction the curve shifts. Thirdly, we compare the new equilibrium with the initial equilibrium.
In market economies, prices are the signals that guide economic decisions and thereby allocate scarce resources. For every good in the economy, the price ensures that supply and demand are in balance. The equilibrium price then determines how much of the good buyers choose to purchase and how much sellers choose to produce.

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