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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60 views

Guess 2/3 of the average with integers - mixed strategy equilibria?

The "Guess 2/3 of the average" game (Wikipedia) is a game in which n people guess what 2/3 of the average of their guesses will be, and where the numbers are restricted to the integer (in this case) ...
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203 views

What is the difference between ordinary income effect and endowment income effect?

As far as I understand: Ordinary income effect: A change in the price of good 1 will affect my future behaviour (the quantities that I will buy of good 1 and good 2). But it doesn't really affect my ...
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97 views

Will an increase in a complementary good with price unchanged move demand curve right and quantity demanded right, as well?

This graph shows the quantity of electricity that consumers demand at a regulated price set by the government. Adjust the graph by dragging the dot or the demand curve (or both) to show the effect of ...
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47 views

Strategy sets and SPNE

I need to find the startegy sets for the two players in this game. I understand that the game has only one subgame, that is, the entire game. I cannot seem to understand the strategy sets of the ...
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99 views

Profit Maximization and Returns to Scale

Assume a labor-intensive production function: $Q(L)=L^\beta$ Find demand of labor that maximizes profits (unconditional demand $L(p,w,r)$), the demand of labor that minimizes costs (unconditional ...
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47 views

Book recommendation: first year economics course

Can anyone help me find a nice introduction (possibly popular economics) into the field of black market economics.
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34 views

Supply/Demand Curve Equation (beginner) [duplicate]

The linear demand function is $Q_D = a + b(P)$. I understand from this thread that it can be thought of as a simplification/magnification of the overall demand curve. Is there an equation that ...
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22 views

What does it mean when marginal profit is the same due to the “competitive principle”?

I am reading "Economic Development with Unlimited Supplies of Labor" by W.A. Lewis and he states that Though the capitalised sector can be subdivided into islands, it remains a single sector ...
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49 views

Is there a possibility to have an inferior good (x) in a utility function where x & y have 0 cross elasticity?

A question I got on an exam that I think I messed up on: If we have cross elasticity of 0 (x & y are independent), can x be an inferior good? I answered with a yes. Am I wrong?
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26 views

Question on Finding the Correct Emission Tax $t$

Let there be two companies $U_{1}$ and $U_{2}$ where, initially $U_{1}$ produces and sells $x$ units at $p=18$. Production costs are $C_{U_{1}}(x)=\frac{1}{6}x^3$ and in the process $a$ units of ...
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23 views

Logs and percentage change in equation

Suppose I have the following relationship between output $y$, capital stock $k$ and total factor productivity $tfp$, $$\frac{\partial y}{\partial t}=\frac{\partial k}{\partial tfp}*\frac{\partial tfp}...
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44 views

Estimation of a Non-linear production function with Non-linear least squares

Suppose that you have to estimate a Non-linear production function (for instance a Cobb-Douglas or a CES) by using Non-linear LS (and hence without log-linearization). You have just aggregate time ...
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25 views

Market price, output that maximize the price and level of firm profit after applying a license fee

I'm currently working on a problem that says the following : At first we had a number N of firms in perfectly competitive industry,the exercice gives us the total cost and the Market Demand with p as ...
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58 views

Economic interpretation of a CES production function

I am following a paper where a production function of this type is used. $$Y=\left [\beta K^{- \rho}+\alpha \eta \left (\frac{K}{L} \right )^{-c(1+\rho)}L^{- \rho} \right ]^{-1/\rho}$$ It is a ...
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1answer
68 views

Elasticity of substitution between leisure in two periods

This is a basic question, but I am new to macro models. The question is from Romer's text. Assume a household only has one member and has no initial wealth, and the household lives for two periods. ...
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2answers
74 views

Monthly price elasticity and possibility of using daily values

I am calculating the price elasticity as a starting point to find a theoretical optimal price that would maximize our revenue. I am looking at 2 years data and to use the price elasticity formula, I ...
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36 views

Which utility function yields following demand $\alpha p^{\epsilon}$ [duplicate]

I am looking for a utility function that will lead to the following demand $$\alpha p^{\epsilon}$$. I know it is most likely a CES utility since the elasticity of demand is constant and this is ...
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1answer
30 views

What data/factors/attributes do the professionals monitor in a top-down analysis on the macroeconomics?

I am learning to do top-down analysis on a number of sectors in the US equity markets. I have never done it before and I would appreciate it if some professionals can share their experiences with me. ...
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1answer
98 views

General Equilibrium Involving Production

I need a little conceptual clarification. For a standard $N*K*M$ general equilibrium model, would an allocation, say, $y^k$ be Pareto Optimal if it does not solve $max(py^k)$? I understand that the ...
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204 views

Assumptions for the existence of a Walrasian equilibrium

I have a problem set stating that a competitive equilibrium does exist under a series of assumptions on the economy. The question is "Show that the following six assumptions are needed for existence ...
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1answer
93 views

Does Preference have a Hierarchy? A Silly Question

I have what is probably a very silly question, but I have gone down the rabbit hole and can’t get back out..... Is there is a hierarchy of preference, and within each level of choice do we reset the ...
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1answer
88 views

Monopsony diagram curves

Why is the marginal cost curve not the same as the supply curve? My personal explanation is that since the marginal cost curve is cost of producing each new product, the supply curve just represents ...
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1answer
181 views

Slutsky Decomposition from Indirect Utility Function [closed]

Given the indirect utility function: V={M^2}/{4P1P2}, how do we establish the Slutsky Decomposition? I used Roy's Identity to get the Demand, but I'm stuck with the other components of the Slutsky ...
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1answer
335 views

intertemporal utility maximisation

Adam's consumption period 1 and 2 are denoted by $c_1$ and $c_2$ respectively. His utility function is $U(c_1,c_2)=4c_1^{0.5} + c_2$ Ben earns an income of \$3 in period 1 and \$3 in period 2, ...
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2answers
442 views

preference relations

Can anybody give an intuitively explanation for the following problem? Let $\succeq$ be a preference relation on a set X. Define I(x) to be the set of all y ∈ X for which y ∼ x. Show that the ...
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1answer
51 views

Categorical variable as explanatory variable (right hand side)

In a linear probability model, or any sort of regression, one can use fixed effect estimation by simply adding in a STATA code i.something. This "something" can be either a village, a county or a ...
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2answers
90 views

How to estimate loss of customers due to customer support inefficiency?

I have a data about customers and their activity on a website for a two-year period. Also, I have a customer support work evaluation data for a shorter period of that two-year period. The question is: ...
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1answer
2k views

Why would a natural monopoly lose money when MC=P, but a competitive firm would get positive accounting profit?

I assume that the natural monopoly is required by law to have maximum price=MC. According to this video such regulation would require constant subsidies for monopoly, because otherwise it would go ...
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1answer
213 views

Why wasn't the wage of the entrepreneur included in explicit costs?

I was solving an economic problem (I was calculating explicit and implicit costs) and noticed one interesting thing: In the said problem, the entrepreneur set himself the wage of 10 000 rubles AND in ...
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1answer
90 views

Trying to show result of prisoners dilemma simulation through supply/demand graph

I made up this situation where candidate $A$ and $B$ are vying for a job. They can accept wage $x$ or undercut this to agree to work for $x-k$ where $0<k<x$. My point was that eventually they ...
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1answer
210 views

Empty edgeworth box [closed]

Can a empty edgeworth box be a pareto set? What kind of economy would be describe in this situation?
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1answer
98 views

Interpretation: Elasticitity of Substitution [closed]

I have this production function: $$P(x_1,x_2)=x_1+x_1*x_2$$ I am trying to find the elasticity of substitution, and I found this: $$\sigma = -\frac{d \ln (\frac{x_2}{x_1})}{d \ln(\frac{x_1}{1+x_2})}...
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1answer
85 views

Economics Masters Courses? [closed]

I want to do an economics masters course (not a PHD) in the UK or US preferably with a focus on game theory, auction theory, mechanism design and contract theory though I understand I'll probably have ...
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26 views

When is the pegged price equal to the market price

Suppose the government pegs an exhaustible resource, at a price $P^*$. I found out that the shadow price (initial price of the resource if government didn't peg) would be $$Q_t = ( \sigma i S_t )^\...
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1answer
106 views

Leontief utility with producer goods

This question may require some explanation. Also, I'm way out of my depths so please let me know if this question is misguided. The standard Leontief utility seems to assume the goods are consumed in ...
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1answer
90 views

How does a Pareto efficient equilibrium scale for n individuals?

Say I have a starting situation with Pareto efficient allocations between 2 individuals, now a third one comes in and changes the allocations. Now a fourth one, etc. Up untill a nth individual comes ...
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2answers
2k views

Does non-binding price ceiling effect the market? [closed]

If the Price of a commodity is 1 dollar and this price is the equilibrium price. At this price, the quantity demanded & supplied is 100(KGs). If government sets the price ceiling of 10 dollars, ...
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2answers
35k views

Determining optimal consumption bundle [closed]

The utility function of the consumer is $5x^{0.5}y^{0.5}$ The income of the consumer is $5000$ The price of good $x$ is $1,000$ and the price of good $y$ is $500$. Determine the optimal ...
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1answer
1k views

conditional factor demand functions for capital and labor [closed]

I don't how to put maths in here so using an image:
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1answer
49 views

In a trading economy with many agents, can two agents with the same income envy eachother?

In a economy with an arbitrary number of agents whose preferences all satisfy the usual equilibrium conditions and with each starting with a random starting endownment, are there any two agents with ...
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1answer
4k views

Quasi-linear utility functions

I have the following quasi-linear utility function given: $u_0 = f(x_1) + x_2$ (with $f'>0$,$f''<0$). I know that the indifference curves are vertically parallel, which means that the slope is ...
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1answer
4k views

Utility function is given as $U = \sqrt{XY}$ find [closed]

Matthew has a utility function $U = \sqrt{XY}$ where X represents hot dogs and Y represents apples. He has an income of $20. Hot dogs cost \$1.00 and apples cost \$1.25 Part (i) asks: Matthew's ...
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1answer
29 views

Studying growth in US and Sweden, what variables should I watch out for in a regression? [closed]

I've be assigned a project on growth paradigms in US vs Sweden as part of my introductory course in econ. Can somebody please help me out with regression ideas?
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116 views

Graphing Volunteer labour Supply

I'm wondering if there is a method by which we can visualize a firms decision to rely on volunteer labour. I have an idea but I'm unsure if it is correct, please tell me if there is an issue with my ...
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1answer
2k views

Interpretation of %p.a. notation

Does anyone know the meaning of the notation x%p.a.? I'm reading a text on seigniorage, and the authors have used that notation to state the usual empirical limit to the seigniorage revenues just ...
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750 views

Binding and slack constraints in adverse selection problem

When I am dealing with a constrained maximization, once I face constraints with inequality sign, I have to understand which one are binding and which others are slack. If I find that a constraint is ...
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0answers
152 views

Is it likely as automation continues to make more jobs obselete, starvation and poverty levels will rise very badly? [duplicate]

I wanted to know facts, thoughts and such since this article (which was big news that trended this week) popped up: http://www.nbcnews.com/tech/tech-news/robot-may-take-your-job-next-few-years-n499556 ...
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1answer
49 views

Is there a problem with Inflation-corrected real price?

Consider CPI and PPI, Consumer Price Index and Producer Price Index respectively. Note that many book correct inflation using the above measures. However, I doubt inflation corrected by these values ...
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3answers
1k views

Marshallian demand help [closed]

Consider a consumer with a Cobb-Douglas utility function over three goods of the form $u=(x_1+z_1)^\alpha \cdot (x_2+z_2)^\beta \cdot (x_3+z_3)^\gamma$ with $\alpha, \ \beta, \ \gamma, \ z_1, \ z_2, \ ...
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1answer
58 views

Monopoly Profits [closed]

Have a question: In the town of Johnson, there are 100 identical citizens and one bus company. The bus company is owned by the citizens, each of whom receives 1% of the bus company’s profits. Nobody ...