Questions tagged [microeconomics]

Microeconomics is a branch of economics that studies the market behavior of individual actors (usually firms and consumers) and the aggregation of their actions in different institutional frameworks (usually the market).

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Slutsky and Hicks approach in calculating SE, IE. Differences and interpretation [closed]

Level: Ungrad, Micro I have a task, http://imgur.com/a/JT4zB I have done some questions. While I can't understand the differences between Slutsky and Hicks approach. I get it theoreticaly, but I don'...
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234 views

Consumer Theory (Finding demand function) [closed]

Here's the question that I really need help with: $$U(x,y)=(x^{0.5})+y$$ $MUx=\frac{1}{2x^{0.5}}$ and $MUy=1$, where $x$ is food, $y$ is clothing $Px$ is the price of food, $Py$ is the price of ...
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Estimate total variable cost function (TVC) and average variable cost function (AVP) from marginal cost function (MC)

I need to estimate the function expressions for $TVC$ and $AVC$ from the $MC$ function for different amounts of quantity $(Q)$ From the solutions I have, that For $Q \leq 50$ $MC1(Q) = -Q + 100$ $...
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94 views

Proving government expenditure crowds out private consumption [closed]

Please help as I am not able to solve either parts.
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New equilibrium when ad-valorem tax is imposed on supplier [closed]

In a question in a past final from my intro Microeconomics courses we're given the following demand and supply equations: $P_s=50-\frac Q2$ $P_d=\frac Q2$ Which give an initial equilibrium quantity ...
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37 views

u(x1, x2) = √ x1 + x2. m = £100 and that p2 = £10, p1 = £1 find the optimal bundle for the consumer [closed]

u(x1, x2) = √ x1 + x2. Suppose that m = £100 and that p2 = £10. Find the optimal bundle for the consumer. In other words, find the combination of x1 and x2 that maximizes the consumer’s utility when ...
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32 views

how to gratify employees if there is increase in production or economy in spending [closed]

the boss of my company(a petroleum company) is giving a standard bonus for employees each year. But this year, he wants a new method to give this bonus, so ,I proposed that for each increase in ...
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Example of a SCR which violates Independence of irrelevant alternatives [closed]

Can you give an example of a Social choice rule which violates Independence of irrelevant alternatives?
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24 views

Q: Determining Consumer Price Preferences [closed]

I have a homework question that I simply cannot make sense of: Points A and B are two bundles on the same indifference curve for an individual. At bundle A, $q_1 = 16$, $q_2 = 1$, and the $\mathrm{...
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1answer
54 views

A preference relation $\succ$ is defined as $(x_1,y_1)\succ (x_2,y_2)$ if $x_1>x_2$ and $y_1> y_2$

Does this satisfy completeness property? I need an intuitive explanation of this preference relation as well. I am confused about the way how this relation is defined. The commodity Y in the first ...
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MRTS question involving production function [closed]

My work out shows constant MRTS and also increasing returns to scale. I thought the answer was C as I only found increasing marginal products of labour and capital. I really don't see how the answer ...
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1answer
23 views

Which of the following firms can operate in a perfectly competitive industry? [closed]

This was a question in a test. I am looking for an explanation for the answer. Firm A's cost of producing output y > 0 is c(y) = 1 + y Firm B's cost of producing output y is c(y) = y(1-y)^2 Answer: ...
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2answers
54 views

What's the market equilibrium price for the used good?

On a perfectly competitive market, a buyer wants to buy a used good. He is willing to pay $30$ for a badly used good, and $60$ for a nicely used good. The seller is willing to sell a badly used good ...
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270 views

Marginal rate of substitution(yx) question

For utility function U= ln(x)+Y How do I determine if MRS(yx) is diminishing or not for this question? I got Mu(x)=1/x and Mu(y)= 1 MRS(yx)=Mu(y)/Mu(x)= 1/1/x = x Does this mean that MRS(yx) is ...
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1answer
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Imperfect Price Discrimination profit per group

During imperfect price discrimination is it possible to determine profit per group. For example: Aggregated Cost function: C(Q) = 18*Q + 5; where Q = q1 + q2 Aggregated Demand (AD) for group 1: q1(...
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Anti Piketty Confusing Movement Along Demand Curve with Shift

In Anti-Piketty, the author's claim that the statement "If the supply of any good is insufficient and it's price is too high, then demand for that good should decrease which should lead to a decline ...
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180 views

Pareto-optimal allocations in the Edgeworth box

If agent A has utility function $u(x_1, x_2)$ and agent B has utility function $v(x_1, x_2)$, what are the equation(s) that characterize the Pareto-efficient allocation of goods in the Edgeworth box? ...
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Inferior and normal good and the change in price of those goods

In general, We know that if a good is normal, then as your income increases, then demand of that good increases as well as price is fixed. Similarly, if a good is inferior, then as your income ...
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1answer
37 views

Will a consumer be more, or less willing to give up a commodity (for the other) for which they have been substituting another? [closed]

Statement: "Indifference curve analysis is based on the assumption of diminishing marginal rate of substitutiins. This means that as the consumer substitutes more and more of one commodity (say X) for ...
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2answers
60 views

How much of an assets price change is due to speculators and functional buys/sellers

If (for example) a heavily traded asset like crude oil has a price move of x, how much of that is influenced by functional buyers/sellers and how much by speculators? Let's say x is +100, there are 8 ...
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1answer
49 views

Finding out an optional consumption without calculation [closed]

I need help with this task. The utility function is U(a;b)=3a+2b. The prices for the goods a and b are equal. Explain what an optional consumption of the consumer would be without calculating. ...
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1answer
393 views

What is optimal profit for this company? [closed]

I am really struggling with the following question: Question: A company produces a product that they sell in two different countries. Because of transport costs, customs etc. it is not profitable ...
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Advanced Microeconomics: Deriving Slutsky Equation

I am not sure how to derive the demand for consumption of today's bread; the first thing the problem asks for. I think it might be a piecewise function based on the interest rate that gets you from ...
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1answer
315 views

Finding an exchange rate and competitive equilibrium given an initial allocation and utility function [closed]

I am attempting to solve the following question. "Smith and Jones are stranded on a desert island. Each has in his possession some slices of ham (H) and cheese (C). Smith is a choosy eater and will ...
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1answer
71 views

Microeconomics for demand [closed]

Oscar’s demand for movies is given by Q = 10−2P. (a) What is the price elasticity of demand at a price of 2? Is Oscar’s demand elastic or inelastic at a price of 2? (b) Assume that the ...
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Marginal Profit Derivation [closed]

Find the marginal profit of a firm with a profit function: $$P(q) = -192q + 88q^2 - 16q^3$$ I got $$\frac{dP}{dq} = -192 + 176q - 48q^2$$ However, the solution reads $$ \frac{dP}{dq}= -4(q-2)(q-...
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1answer
591 views

Is this answer correct for opportunity cost? [closed]

Shouldn't the answer the question be $0. Because you arent really giving up anything?
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finding optimal values of quantities through utility function when MRS is 1 and price ratio is 1:2 [closed]

so this is a somewhat simple question but im stumped, here's why: given the utility U=2$X_1$+2$X_2$ where $P_1$$X_1$+$P_2$$X_2$=20 and $P_1$=0.5$P_2$ the question asks to find optimal values of $...
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736 views

Intuitively, why is Profit = (Price $-$ Average Cost) $\times$ Quantity?

Sources: p 289, Principles of Microeconomics (7 Ed, 2014) by N G Mankiw p 259, Modern Principles of Economics (2 ed, 2011) by Tyler Cowen, Alex Tabarrok Definitions: Profit $:=$ Total Revenue $−$ ...
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Microeconomy, monopoly, maximum profit - two different answers when solving exercise in two different ways

Suppose that monopoly produces product $X$. Let $MC = 20$, Quantity demanded function is given by equation $Q_d = 600 - 2P$ (where $Q_d$ - demand curve, $P$ - price). Calculate the amount of ...
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2answers
970 views

Find Engel Curve with a Cobb-Douglas [closed]

I have $U(x,y)=xy$, $p_1=4$ and $p_2=1$. Income is unknown. Where do I start?
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1answer
234 views

What does this formula stand for? [closed]

W/Vmp = ? I think it is the marginal product....but I have really no clue....any help on this?
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306 views

Are these preferences convex? [closed]

$Let$ the utility function defined to be : $$U(x,y)=-x^2-y^2$$ I believe they are convex, the set which is preferred to a specific indifference curve is convex, but the answer sheet says that it is ...
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1answer
198 views

Question on monopolist (involves simple calculus)

QUESTION: Consider the problem of a monopolist that sells its product in two different markets $m$, with $m=1,2$. Each market has an aggregate demand function given by $1200−α_m\cdot p_m$, where $p_m$ ...
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Deadweight loss from a linear demand function [closed]

If I have a linear demand function: x = a - bp How do the values of a and b affect the deadweight loss of a commodity tax?
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32 views

Quasi linear function how to rule out corner solution

I'm dealing with a quasi-linear utility function which is $u(x,y)=x+2\sqrt{y}$ There is not income effect so the Walrasian demand obtained by the procedure: $MRS=Px/Py=\left(2\sqrt{y}\right)'$ and ...
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1answer
99 views

Changing Constant Factor Demands

I’ve been given this true false question: Consider the minimization of wL + rK given F(K, L) $\geq$ Q with F(K, L) strictly increasing in K and L. The conditional factor demands K*(Q, w, r) and L*(Q, ...
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1answer
104 views

How to find the optimal consumption basket? [closed]

A consumer has the following utility function and income. 𝑈(𝑥, 𝑦) =1/2 * ln 𝑥 + 1/2 * ln y Price of 𝑥 = Price of 𝑦 = 100. Income = 1000 Suppose that the consumer gets 2 redeemable coupons for ...
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1answer
211 views

Maximizing a Cobb-Douglas Function

Suppose that a competitive firm receives a price of $P$ for its output, and pays prices of w, r and v for its labor $(L)$, capital $(K)$ and natural resources $(R)$ inputs, respectively. The firm ...
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1answer
220 views

Question on consumer theory

The story of my question is I have multiple question. (1) when John doesn’t work in the underground economy at all , t=0, how can I find the optimal value of $l$ and consumption bundle and his ...
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1answer
3k views

Income effect for complements

Suppose u(x,y)=min(x,2y) and the price of X is 1, the price of Y is 1 and income is $12. If the price of X increases to 2, the income effect is supposed to be -1. I keep getting zero for some reason. ...
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1answer
81 views

Please solve this question [closed]

If the cross elasticity of demand of X commodity for changes in the price of Y commodity is positive, the commodities X and Y are (a) complement (b)subsitutes (c) giffen (d) infirior goods
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How to calculate income and substitution effect when equal marginal principle is violated

I am trying to calculate substitution and income effect for 2 goods, x and y. Given that marginal utility x = 1, marginal utility y = -a (unknown number), price of x = 16, price of y = 20, how ...
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215 views

How do find elasticity of substitution for this function

The motive of my post is in search of some help in order to understand the correct way to find the elasticity of substitution by means of calculating the following function. $$f(K, L)=\frac{K^{2}L^{...
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2answers
111 views

Why can't direct taxes be passed on to the consumer? [duplicate]

What stops firms increasing prices of goods in the case of an increase of a direct tax such as corporation tax?
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1answer
291 views

What is the most successful economic prediction? [closed]

The question above is closed and unanswered. Stop dodging the question. I am asking for one example. Successful defined as: Has been consistently correct for the longest number of years Has been ...
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1answer
39 views

NASH equilibrium [closed]

How to approach questions like these: In a two player static game with a discrete strategic space that permits each player to chose one of the four possible strategies what is the maximum number of ...
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1answer
37 views

consumer preference [closed]

let $u(x_1,x_2)=x_2 + a\ln x_1$ subject to $m=p_1x_1+ p_2x_2$ when I try to derive the Marshallian demand for $x_1$ and $x_2$ I cannot find the Marshallian demand for $x_1$ since the marginal utility ...
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1answer
48 views

Where to begin with solving this table on Total Cost analysis?

I've been working on solving a table for the past hour or so, I'm completely lost as it appears the values aren't quite correct, this is what we've been given to solve: We've been given that the ...
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2answers
141 views

Effects of giving everyone in the US \$4.33 million dollars each? [closed]

This image has been doing the rounds on facebook: Funny arithmetic error aside, what would be some of the effects of giving everyone in the United States \$4.33 million dollars each?