Q. Explain about Cardinal utility?

A measure of utility or satisfaction derived from consumption of services and goods which can be measured using an absolute scale. Cardinal utility exists if utility derived from consumption is measurable in the same way that other physical characteristics--weight and height --are measured using a scale which is comparable between people. There is little or no evidence to propose that such measurement is possible and isn't even required for modern consumer demand theory and indifference curve analysis. Cardinal utility though is often used as a convenient teaching device for discussing these concepts as utility maximisation and marginal utility.