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#cfa #cfa-level-1 #economics #microeconomics #reading-14-demand-and-supply-analysis-consumer-demand #section-3-utility-theory #study-session-4

In general, we can represent the utility function as

Equation (1) 

U=f(Qx1,Qx2,...,Qxn)

where the Qs are the quantities of each of the respective goods and services in the bundles. In the case of two goods—say, ounces of wine (W) and slices of bread (B)—a utility function might be simply

Equation (2) 

U = f(W,B) = WB

or the product of the number of ounces of wine and the number of slices of bread. The utility of a bundle containing 4 ounces of wine along with 2 slices of bread would equal 8 utils, and it would rank lower than a bundle containing 3 ounces of wine along with 3 slices of bread, which would yield 9 utils.

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3. UTILITY THEORY: MODELING PREFERENCES AND TASTES
ferences. The number itself is referred to as the utility of that basket and is measured in utils , which are just quantities of happiness, or well-being, or whatever comes to mind such that more of it is better than less of it. <span>In general, we can represent the utility function as Equation (1)  U=f(Qx1,Qx2,...,Qxn) where the Qs are the quantities of each of the respective goods and services in the bundles. In the case of two goods—say, ounces of wine (W) and slices of bread (B)—a utility function might be simply Equation (2)  U = f(W,B) = WB or the product of the number of ounces of wine and the number of slices of bread. The utility of a bundle containing 4 ounces of wine along with 2 slices of bread would equal 8 utils, and it would rank lower than a bundle containing 3 ounces of wine along with 3 slices of bread, which would yield 9 utils. The important point to note is that the utility function is just a ranking of bundles of goods. If someone were to replace all those pieces of paper with new numbers that m


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