Solution:Alfred Marshall presented his Cardinal theory of consumer behavior in his 1890 book principles of ecnomics. The theory is based on the idea that satisfaction levels from consuming goods and services can be measured in numbers, or utils.
However, economists in the 1940's proved that ordinal utilities can imply cardinal utilities under certain condition. This result is known as the Von Neumann Morgenstern utility theory.
The main limitatiation of cardinal utility is that it assumes that utility can be measured in absolute and comparable terms. This assumption is often not realistic because people have different ways of experiencing and expressing satisfaction.
In 1906 Vilfredo Pareto in 1906 concentrated on an indifference curve map. This placed on an indifference curve map. This placed preference on bundles of goods but did not attempt to say how much. John Hicks and Roy Allen in 1934 first produced a paper which mentioned ordinal utility.
Revealed preference theory, in economics, a theory, introduced by the American economist Paul Samuelson in 1938, that holds that consumer's preferences can be revealed by what they purchase under different circumstances, particularly under different circumstances, particuarly under different income and price circumstances.
The linear expenditure system was introduced by Stone in 1954.