What happens to MU when positive?

As long as MU is positive, the value of TU increases with an increase in the consumption of the commodity.

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One may also ask which utility is always positive?

Marginal utility Marginal utility is positive as long as the utility derived from successive unit is greater than the utility received... Consequently, why does mrf diminishes? Most indifference curves are usually convex because as you consume more of one good you will consume less of the other. So, MRS will decrease as one moves down the indifference curve. This is known as the law of diminishing marginal rate of substitution.

Why does MRS equal MRT?

The Difference Between the MRT and the Marginal Rate of Substitution (MRS) While the marginal rate of transformation (MRT) is similar to the marginal rate of substitution (MRS), these two concepts are not the same. The marginal rate of substitution focuses on demand, while MRT focuses on supply. Then, who developed engel? statistician Ernst Engel German statistician Ernst Engel (1821-1896) was the first to investigate this relationship systematically in an article published about 150 years ago. The best-known single result from the article is "Engel's law," which states that the poorer a family is, the larger the budget share it spends on nourishment.

What is Giffen paradox in economics?

Giffen's paradox refers to the possibility that standard competitive demand, with nominal wealth held constant, can be upward sloping, violating the law of demand. Giffen preferences are preferences that can exhibit Giffen's paradox. What is the slope of an Engel curve? Engel curves relate the quantity of good consumed to income. If the good is a normal good, the Engel curve is upward sloping. If the good is an inferior good, the Engel curve is downward sloping.