What is the difference between the income effect and the substitution effect of a price change?

• What is the difference between the income effect and the substitution effect of a price change?

• (A) The income effect is the change in demand due to the change in real income, while the substitution effect is the change in demand due to the change in relative prices

• (B) The income effect is the change in demand due to the change in relative prices, while the substitution effect is the change in demand due to the change in real income

• © The income effect is the change in demand due to the change in preferences, while the substitution effect is the change in demand due to the change in budget constraints

• (D) The income effect is the change in demand due to the change in budget constraints, while the substitution effect is the change in demand due to the change in preferences

• Ans:A

• What is the slope of the income consumption curve (ICC) for a normal good?

• (A) Positive

• (B) Negative

• © Zero

• (D) Indeterminate

• Ans:A

1. What is the name of the problem that Hicksian demand functions solve?

• A) Utility maximization problem

• B) Expenditure minimization problem

• C) Income effect problem

• D) Substitution effect problem

• B) Expenditure minimization problem

2. What is the name of the equation that relates Hicksian and Marshallian demand functions?

• A) Slutsky equation

• B) Roy’s identity

• C) Shephard’s lemma

• D) Euler’s theorem

• A) Slutsky equation

3. What is the name of the effect that Hicksian demand functions isolate from Marshallian demand functions?

• A) Income effect

• B) Substitution effect

• C) Price effect

• D) Wealth effect

• B) Substitution effect

4. What is the property of Hicksian demand functions that implies they are homogeneous of degree zero in prices?

• A) Convexity

• B) Continuity

• C) Symmetry

• D) Homogeneity

• D) Homogeneity

5. What is the name of the function that gives the minimum expenditure required to achieve a given utility level at given prices?

• A) Indirect utility function

• B) Expenditure function

• C) Cost function

• D) Budget function

• B) Expenditure function

6. What is the name of the function that gives the utility level of having a given income at given prices?

• A) Indirect utility function

• B) Expenditure function

• C) Cost function

• D) Budget function

• A) Indirect utility function

7. What is the name of the lemma that states that the derivative of the expenditure function with respect to a price gives the Hicksian demand for that good?

• A) Slutsky equation

• B) Roy’s identity

• C) Shephard’s lemma

• D) Euler’s theorem

• C) Shephard’s lemma

8. What is the name of the identity that states that the derivative of the indirect utility function with respect to a price gives the negative of the Marshallian demand for that good divided by the marginal utility of income?

• A) Slutsky equation

• B) Roy’s identity

• C) Shephard’s lemma

• D) Euler’s theorem

• B) Roy’s identity

9. What is the name of the curve that shows the relationship between the price of a good and the Hicksian demand for that good, holding utility and other prices constant?

• A) Demand curve

• B) Engel curve

• C) Compensated demand curve

• D) Offer curve

• C) Compensated demand curve

10. What is the name of the good that has a positive income effect and a negative substitution effect, such that the Hicksian demand curve is steeper than the Marshallian demand curve?

• A) Normal good

• B) Inferior good

• C) Giffen good

• D) Veblen good

• B) Inferior good

1. Who proposed the revealed preference theory in 1938?

• A) John Maynard Keynes

• B) Paul Anthony Samuelson

• C) Alfred Marshall

• D) Vilfredo Pareto

• Answer: B

2. What is the main assumption of revealed preference theory?

• A) Consumers are irrational

• B) Consumers are rational

• C) Consumers are indifferent

• D) Consumers are altruistic

• Answer: B

3. What is the name of the axiom that states that if a consumer chooses a bundle a over another bundle b when both are affordable, then the consumer will never choose b over a when both are affordable, even as prices vary?

• A) Weak Axiom of Revealed Preference (WARP)

• B) Strong Axiom of Revealed Preference (SARP)

• C) Generalized Axiom of Revealed Preference (GARP)

• D) None of the above

• Answer: A

4. What is the name of the theorem that states that a set of choices is consistent with WARP if and only if there exists a utility function that rationalizes the choices?

• A) Samuelson’s Theorem

• B) Afriat’s Theorem

• C) Varian’s Theorem

• D) All of the above

• Answer: D

5. What is the name of the method that tests whether a set of choices satisfies GARP by checking whether there exists a set of positive numbers that represent the marginal utility of income for each choice?

• A) Afriat’s Method

• B) Varian’s Method

• C) Houthakker’s Method

• D) None of the above

• Answer: A

6. What is the name of the method that tests whether a set of choices satisfies GARP by checking whether there exists a non-satiated utility function that rationalizes the choices?

• A) Afriat’s Method

• B) Varian’s Method

• C) Houthakker’s Method

• D) None of the above

• Answer: B

7. What is the name of the method that tests whether a set of choices satisfies GARP by checking whether there exists a linear expenditure system that rationalizes the choices?

• A) Afriat’s Method

• B) Varian’s Method

• C) Houthakker’s Method

• D) None of the above

• Answer: C

8. What is the name of the concept that measures the degree of violation of GARP by a set of choices?

• A) Money Pump Index

• B) Afriat’s Efficiency Index

• C) Varian’s Critical Cost Efficiency Index

• D) All of the above

• Answer: D

9. What is the name of the concept that measures the degree of consistency of a set of choices with a stochastic version of GARP?

• A) Money Pump Index

• B) Afriat’s Efficiency Index

• C) Varian’s Critical Cost Efficiency Index

• D) All of the above

• Answer: B

10. What is the name of the concept that measures the degree of consistency of a set of choices with a random utility model?

• A) Money Pump Index

• B) Afriat’s Efficiency Index

• C) Varian’s Critical Cost Efficiency Index

• D) All of the above

• Answer: C

Effect of Global Warming 

Global warming poses a grave danger to our planet and the generations to come. It is a result of the irresponsible combustion of fossil fuels, the wanton destruction of forests, and the insatiable greed of corporations and governments. The consequences of global warming are dire: the melting of ice caps, the rise in sea levels, and the intensification of extreme weather events. This catastrophic phenomenon is responsible for the extinction of countless animal and plant species, while simultaneously jeopardizing the lives and livelihoods of billions of individuals. Global warming is not a fabrication, a fallacy, or a natural cycle. It is an entirely man-made catastrophe that necessitates immediate action to avert irreparable damage. We must act swiftly, or else we shall bear the brunt of our own inaction. It is imperative that we reduce our carbon emissions, transition to renewable energy sources, and safeguard our environment. We must demand accountability from our leaders and hold them responsible for their decisions. Let us rally together to protect our planet and secure our future. Global warming is not a predicament for the future; it is an urgent crisis of the present.