# What does the expenditure function tell us?

## What does the expenditure function tell us?

From Wikipedia, the free encyclopedia. In microeconomics, the expenditure function gives the minimum amount of money an individual needs to spend to achieve some level of utility, given a utility function and the prices of the available goods.

### Why is expenditure function homogeneous of degree 1?

Theorem: If u(x) is continuous, strictly quasi-concave and non-satiated, then the associated cost (expenditure) function c(p, u) is homogeneous of degree 1 in p, concave, strictly increasing in u, and has partial derivatives which are the compensated (Hicksian) demand functions.

#### What is the income expenditure model?

The income expenditure model of economics was developed by John Maynard Keynes to explain fluctuations in production of goods and services and spending. The model basically states that we produce as many goods as will sell on the market and fluctuations in production and expenditure are tied to keep an economy stable.

What does Roy’s identity do?

Roy’s Identity provides a means of obtaining a demand function from an indirect utility function. Notice that we have the demand function on the left of the equality and we differentiate the indirect utility on the right side with respect to each of its arguments.

What is Roy’s identity used for?

Application. This gives a method of deriving the Marshallian demand function of a good for some consumer from the indirect utility function of that consumer. It is also fundamental in deriving the Slutsky equation.

## What is the lump sum principle?

In economics, the lump sum principle states that a tax on a person’s general purchasing power is more efficient than a tax on specific goods. Keeping the section of Lump sum would be something like making Firefly a section of Fire on grounds that they sound similar and have a resemblance in giving off light.

### What are the properties of the expenditure function?

(Slutsky Equation) Properties of Expenditure Function 1. Complete – E(P, u) defined for all P > 0 and u 2. Continuous – E(P, u) continuous in P and u (even if compensating demands aren’t) E(P,I) = P⋅xc(P, u); x.

#### Are there any scientific proofs of God’s existence?

You can get over an hour of scientific, mathematical and logical evidence for God in the Top Ten Proofs for God’s Existence. This is just one simple example of scientific evidence for God’s existence out of many that can help you defend the faith with evidence of God based on science and logic, not just faith.

Why does Prof flew believe in the existence of God?

One of the reasons cited by Prof. Flew was ‘the evidence.’ He admitted that for a long time the growing problem of Evolution’s inability to explain how life began, or for that matter, how anything began, led him to the inevitable conclusion that it was an inadequate answer in the face of the evidence.

What are the 3 properties of compensated demand?

3 of 5 Properties of Compensated Demand 1. Complete – xc(P, u) defined for all P > 0 and u 2. “Sort of” Continuous – xc(P, u) continuous in P and u (like ordinary demand, compensated demand may not be a function so there may be multiple optimal solutions (many xc) but it will always be a convex set) 3.