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# 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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23 views

### Has contest theory ever been used to design real-world contests?

Contest theory, very much like auction theory, studies how people act in a contest and the properties of such a competition. There is a large literature that investigates different aspects of the ...
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### Why should houses have the same price for a given supply

So I'm reading Varian intermediate microeconomics and in chapter one it's about housing. Suppose we have a inner ring and a outer ring in a city where there is a university. In the inner ring supply ...
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### optimization problem for two individuals

Two flat mates 1 and 2, rent a flat and play their own music on the only CD player owned by flat-owner. They both like their own music, but dislike the music played by the other. Given the timing ...
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### two period consumption problem

Ms. A earns 25,000 dollars in period 1 and 15,000 dollars in period 2. Mr. B earns 15,000 dollars in period 1 and 30,000 dollars in period 2. they can borrow money at an interest rate of 200% and can ...
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### The law of supply and demand - How does it work?

I've learned what the principle of supply and demand says, and would paraphrase it like this: The price of a good is at equilibrium when supply and demand are equal. Or with other words: The ...
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### Finding the optimal consumption bundle given the strictly concave utility function $v(x,y) = U(x) +y$?

I am also finding it difficult to understand what are the fundamental differences between analysing optimal bundles between concave and convex functions ? Does it also happen that the optimal bundle ...
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### Optimal pareto in two-person game

For what values $x$, $y$ the profile $(D,L)$ is Pareto optimal? \begin{array}{c|ccc} & L & R \\ \hline U & x,5 & x+2,y \\ D& 1,-1 & x,0 \\ \end{array} Is correct $x<1$ ? ...
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### Compound lottery preference implies simple lottery preference

Suppose $\alpha>\beta$ and for two lotteries $L, L'$ $\alpha L + (1 - \alpha)L' \succ \beta L + (1- \beta) L'$ where $\succ$ implies preference. If the independence theorem holds, how do you ...
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### robinson economy with production

Facing a little bit of a problem with this questions, did a similar one BUT the utility function was not linear and got MRS dependent on goods (was not just a number) - here I am at a loss. The ...
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### Decreasing and increasing returns to scale question

Hi, I have deduced that this function exhibit increasing returns to scale but I am not sure how to verify part d. My answer doesn't show that there is decreasing returns to scale but I can't be sure d ...
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### wage/productivity, what does it show

I just confused about the fact that does wage/productivity show the wage gap? So if wage/productivity is the wage gap then by the increase in productivity the wage gap should decrease as the ...
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### Homogeneity in Marshallian demand function

I have worked out the expenditure function for a Marshallian demand function, R represents a fixed cost and the questions asks about why the expenditure function is unusual. The answer explains it is ...
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### How are preferences related to relative prices?

For instance, across regions of a country or between countries. Is that different preferences for food lead to distinct relative prices in different regions or countries? Or is it the other way ...
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### Finding Optimal Bundle and Change in Satisfaction after Changes in Budget Constraint

I am looking at the following exercise and struggling with the solution proposed by my microeconomics book. A consumer spends all his income on two goods, X and Y. The prices he paid and the ...
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### How to evaluate customer lifetime value

I am learning about calculating Customer Lifetime Value (CLV). So far I have learned that there are many ways to calculate it, like stated here, which I understand, different industries will also need ...
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### Net Present Value with investments in multiple phases

I am trying to calculate the Net Present Value for a theoretical project in which, unlike most examples in textbooks and on internet tutorials, investments do not only happen in t=0, but they also ...
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### Equivalence of definitions of upper contour sets

Mas-Collel, Winston and Green's Microeconomic Theory (3rd editions) offers two definitions of the upper contour set: How can the equivalence between the two definitions be proved?
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### Calculating Demand curve function from Elasticity of demand, price per quantity and quantity purchased?

For an assignment I have to model the demand function and find consumer surplus based upon elasticity of demand, price per quantity and quantity purchased. Ill copy and paste the assignment below and ...
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### Supply/Demand Shift (Find New Equilibrium)

Starting: supply curve $y=x+10$ and demand curve $y = -x+30$ with equilibrium at (10, 20). The problem states that DEMAND shifts leftwards by 3 units and to find the new equilibrium. My professor did ...
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### 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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### 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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### 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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### 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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### 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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### Book recommendation: first year economics course

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