# 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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### Price discrimination

If I have 3 consumers who I want to sell package 1, 2 and 3 to respectively. Meaning consumer 1 I would like to sell package 1 to, consumer 2 I would like to sell package 2 to and so on. The packages ...
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### Increased inflation rate on borrowers and lenders

I'm trying to understand a concept in microeconomics. So if inflation increases while nominal interest rate stays the same, what are the substitution effects and income effects on borrowers and ...
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### Metric for evaluating sales with dynamic pricing

Suppose you have a sausage maker. He buys batches of ground meat, then makes and sells sausages. Suppose each batch of ground meat makes N sausages, and each batch has specific level of quality that ...
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### Where to start, to know the cost, in hours of work, necessary to produce one more car (or any other good)?

Let's say I want to buy a car. It costs that, so I can know that, for example, I have to work 3 months to pay for it. But does the car really needs three months of human work to be build? What is the ...
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### competitive equilibrium with density functions

Assume there are two competitive markets for goods a and b. Each consumer will either purchase one unit of a and none of b, or one of b and none of a. Consumers never consume both goods. Utilities are ...
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### Calculating a cross price substitution/income effect

I am given a utility function $U(x,y)$, income $I$ and prices $p_x,p_y$. Then the price of $y$ rises to $p_y' = 3 \cdot p_y$. How are we supposed to calculate the substitution effect and income effect ...
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### Stiglitz 1976 on irrelevance of corporate financial policy

In this paper, Stiglitz gives a verbal argument as follows: Let us consider verbally what actions of the individuals are required to offset various actions by the firm. Assume the ...
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### A high store loyalty indicates what kind of competition among cement retailers selling products of the same brand?

To provide some context, this question occurred to me while I was considering the cement retail market. If one considers retailers selling cement of only one brand, then the concept of brand loyalty ...
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### Market with substitutes: Response of prices and quantities

The demand function for theater tickets is $D_t(p_t,p_c)$, where $p_t$ stands for the price of theater tickets and $p_c$ stands for the price of cinema tickets. Supply of theater tickets is described ...
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### Separate optimization problem versus one big Lagrangean

I am a bit confused about when to consider a separate optimization problem and when to combine different problems into a single optimization problem. Consider an individual who derives utility from ...
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### Microeconomic Model of Knowledge and Technology

Can you point me to any microeconomic models of knowledge and technology? It is intended to be used for simulation. The problem that arises is that you need to simulate the effects of technology on ...
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### Semi Annual Deposit that earns 5% Compounded Quarterly

I was asked: A man planned to endow 1000000 USD to his son on his son's 21'st birthday. How much is his semi-annual deposit in a special account that earns 5% compounded quarterly if the first ...
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### Impact of Economic Crisis on Supermarkets And Chemists?

In the undergoing Greek financial crisis, I’ve heard more than once that the three prime sufferers in any economic crisis are the 'bankers', 'supermarkets 'and 'chemists'. I do understand why the ...
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### Given Cobb-Douglas production functions for 2 factories (same owner), how will the owner produce $y$?

So my question is this: A company owns two factories, A and B, each with the following production functions: $f_A(x_1,x_2)=x_1^{\alpha}x_2^{1-\alpha}$ $f_B(x_1,x_2)=x_1^{\beta}x_2^{1-\beta}$ Now ...
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### Implementing Coasian bargaining to achieve social welfare

In this excellent answer, Ubiquitous elaborates on the Coasian solution as an alternative to Pigouvian subsidies. I wanted to explore and understand the solution a bit further. Consider the setting ...
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### Altruism and locally non-satiated preferences

Is there an altruistic utility function that cannot represent a locally non-satiated preference? As an example of an altruistic utility function: $U^1(x^1,...,x^H)=u^1(x^1)+\sum^H_{j=2}U^j(x^j)$, ...
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### Where can I find quarterly/monthly medicare/medicaid state level drug utilization data

I read a paper titled 'State generic substitution laws can lower drug outlays under medicaid'. It uses quarterly state level medicaid drug utilization data. However, I could only find yearly data at ...
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### Sequential price setting SPNE

Firms A and B are in an oligopoly. They both face the linear market demand curve $X=A-\alpha P$, where $X$ is total market demand, and $P$ is price. Assume constant marginal costs $C_{A}$ and $C_{B}$, ...
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### Elasticity of subsitution: a redundant calculation?

Elasticity of subsitution is a measure of the curvature of an isoquant1 and can provide us information regarding the nature of the production functions we are dealing with. this is visualized in ...
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### Do you get economies of scope from horizontal or vertical integration?

Economies of scope: make it cheaper to produce a range of products together than produce each one on its own as company can share inputs (e.g marketing and finance) removing cost redundancy Would ...
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### Necessary conditions for the existence of a competitive equilibirum

I got that in an exchange economy, conditions as preferences being continuous, strictly convex and strongly monotone and $\sum_i \omega_i\gg 0$ are sufficient conditions for the existence of a ...