Marshallian utility analysis is known as Cardinal utility analysis. This approach was developed by Alfred Marshall, a British economist, and is based on the assumption that utility can be measured numerically.

Explanation:

Cardinal utility analysis assumes that the satisfaction derived from consuming a good or service can be measured in specific units of utility. This approach is based on the concept of marginal utility, which suggests that the additional satisfaction gained from consuming one more unit of a good or service decreases as the quantity consumed increases.

In other words, the first unit of a good or service consumed provides the greatest amount of utility, and each subsequent unit provides less and less utility. The total utility derived from consuming a certain quantity of a good or service can be calculated by adding together the marginal utilities of each unit.

Marshall's approach to utility analysis was different from the earlier classical economists who believed that utility was not measurable and only relative rankings of preferences mattered, known as ordinal utility analysis.

Conclusion:

In conclusion, Marshallian utility analysis is known as Cardinal utility analysis, which assumes that utility can be measured numerically, and the satisfaction derived from consuming a good or service can be calculated by adding together the marginal utilities of each unit.

Because Marshall has given utility analysis and in this analysis we assume utility can be measured