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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7
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2answers
3k views

Which utility function yields a constant price elasticity of demand function?

How do I know which utility function I can use to find an isoelastic demand function, e.g., $x(p)=Ap^a$? And similarly, which cost function can I use to find an isoelastic supply function? Does it ...
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Are monotonic and continuous preferences necessarily rational?

Let $\succsim$ be a strictly monotonic and continuous preference relation, and let $X=\mathbb{R}^{n}$ be the consumption set. Is rationality of $\succsim$ implied by these conditions? I think ...
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Tests of rational inattention

Can you provide a reference regarding a revealed preference test(s) of rational inattention models, as proposed by Sims, ergo, using a mutual information measure as the cost of putting attention. And ...
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249 views

Why use empirical macroeconomic models when they are not policy invariant (Lucas Critique)?

With high probability this question is duplicate, and I tried to find one already in the community, but I was unsuccessful. According to the Lucas Critique, in its more general terms, the problem ...
6
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1answer
583 views

Prove that a continuous $\succsim$ is quasilinear

This question is closely related to Mas-colell, Whinston, Green: Microeconomic Theory, Question 3.C.5b Let $\succsim$ be a strictly monotone, continuous, and rational preference relation on $(-\...
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509 views

Establish demand curve with infrequent sales

I sell variations of an item on eBay. It is an unusual commodity which I purchase in bulk lengths and then cut to various sizes. They come in about 20 types, which I then sell as 10 different lengths, ...
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1answer
92 views

Computational Bayesian Statistics and Economics

What is there that links computational Bayesian statistics and Economics(preferably macro)? I'm looking for a primer or gentle introduction on the matter. It doesn't need to go into much detail. Any ...
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2answers
1k views

Intermediate macroeconomics: optimal bundle for quasilinear utility?

How would I go about solving this question: Assuming consumer's utility function is $U(C,L)=c+2l^{0.5}$, consumer earns a wage of 0.5/hour, $h=24$ and there is no real dividend and tax is $T=11$. ...
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1answer
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What happens to a production possibilities curve whenever there is too much labor? [closed]

If too much labor is added to a country's production, what happens to the production possibilities curve?
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1answer
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Continuity Axiom in Expected Utility Theory

Take the following definition of continuity. The preference relation $\succsim$ over the space of lotteries $\mathcal L$ is continuous if for any $L,L',L''\in\mathcal L$, the sets $$S_1=\{\...
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Why doesn't Costco simply raise prices and nix the membership fee?

I know little about the field of economics. I realize this question may be too rudimentary for this forum but I am sure someone here can explain this. My question concerns Costco, which is a ...
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A few clarifications on Utility equations and indifference curves?

I have the utility equation $U(a,b) = a^{2}b^{3}$ How can I tell if the indifference curves are convex? I was under the impression that if: $U_{a} > 0$ and $U_{b} < 0$ then the curve would ...
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Is a strong foundation in advanced microeconomic theory essential to study environmental economics at the graduate level?

Advanced theory of individual economic behaviour in production, consumption, and general equilibrium. Are these topics useful to study environmental economics a the graduate level, or is there not a ...
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What does perfectly inelastic demand imply about gains from trade and domestic consumers?

Source: p 191, Question 9.7b, 9.7c, Principles of Microeconomics, 7 Ed, 2014, by NG Mankiw Consider a country that imports a good. True or false. Explain your answer. b) “If demand is perfectly ...
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1answer
865 views

Real world example of using difference quotient vs. derivative

When would you use the difference quotient in an economic model rather than the derivative to assess the change in some endogenous variable? Real world examples seem to be lacking in textbooks on ...
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1answer
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Monotone transformation of utility

We have learned that any "strictly positive monotonous transformation" of utility functions is okay, as long as they preserve the ranking of choices implied by the underlying preferences. Consider $U(...
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1answer
1k views

Production function and isoquant slope

Given the company's production function $f(L,K)=L^{1/3}K^{3/4}$, find slope of the isoquant passing through $(L,K)=(20,40)$ is equal to $-4/5$ (K is on the vertical axis). I need to state whether ...
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0answers
34 views

Question about nested input requirements

In Michael Carter's "Foundation of Mathematical Economics" we have the following exercise: Prove that the input requirement sets are nested. That is, prove that $V(y') \supseteq V(y)$ $ \forall $ $y'...
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757 views

Why is airbnb more expensive than priceline?

Some might say I have an addiction to Priceline Name Your Own Price, however, what I can tell you is that NYOP rates for 2.5* and 3* hotels are always better than the room options offered through ...
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1answer
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Does the hoarding of perishable goods such as pulses and cereals make economic sense?

I was thinking about the idea of hoarding and the kind of news it is making in India. What strikes me is that hoarding of pulses and cereals does not happen the way people thinks because they are a ...
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2answers
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Why is instantaneous utility of current period discounted?

Consider a two period model of consumption. I'm confused by the fact that in the optimum condition it is the marginal utility of the current period that is discounted, not the marginal utility of the ...
3
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1answer
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Price ratio determined by endowments only?

Am I right to say in an Exchange Economy with two consumers with identical preferences, the equilibrium price (WEA) of the two goods would be determined by availability of two goods, i.e, total ...
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243 views

How are price and quantity demanded going to be affected?

The consequences of decriminalizing illegal drugs have long been debated. Some claim that legalization will lower the price of these drugs and reduce related crime and that more people will use these ...
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207 views

How do supply chains form?

I am trying to put forth a theory for endogenous supply chain formation. A set of $K$ complementary tasks need to be performed to manufacture a good $G$. If manufactured, there exists a demand ...
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526 views

Interpreting coefficient in the disutility function as disutility tolerance?

I am studying a model that relates incentives (money) and a set of actions. Let $f(x) = k\frac{x^2}{2}$ be the disutility function of the agent, where $x$ is the level of effort that the agent is ...
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1answer
55 views

Comparing two groups of individuals

I am trying to show that 2 groups of individuals are intrinsically the same. I have various characteristics to measure for both group A and group B, such as height, weight, age, etc. I have taken the ...
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1answer
196 views

What term/theory describes more efficient utilization of a resource?

I may be asking the wrong question here, but I wonder if there is a term/theory that describes/studies the evolution of an economy that continually improves the utilization and allocation of certain ...
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2answers
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Marginal Utility with Supply and Demand Curves

Can someone explain how the equilibrium points in the image below (source: The Foundations of Econometric Analysis) represent marginal utilities. I have read about the relationship between the ...
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0answers
302 views

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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Has any progress been made on the Pacman Conjecture on Finite Time Horizons?

The Pacman conjecture states that the optimal strategy for monopolistic durable goods manufacturers is to set price high and slowly drop it (i.e. eating their way down the demand curve). Empirically ...
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12answers
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If I gain, then someone else loses. Correct?

On a very small scale, it's certainly true that if I gain, somebody else might lose. If I take away my brother's chocolate, then he will lose it, and will most probably not get anything comparable. ...
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2answers
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Why do lump sum transfers affect prices?

Let's suppose that I want to maximize total welfare (Social Planner Problem) using lump sum transfers to individuals. It's known then that the price ratio changes relative to when there are no lump ...
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3answers
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Is scalping tickets harmful?

IMHO, scalping tickets is no different from legitimate arbitrage unless manipulative. Iirc, arbitrage increases surplus and hindering scalping is setting a price ceiling which leads to deadweight ...
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1answer
48 views

Competition between utilities like ports

I was reading about the frequent congestion in US ports and the resulting effect on the US economy. I feel there are unique features to this setting. When ports face congestion, they levy charges, and ...
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1answer
57 views

Economic Overview of Pacific Island Nations

What are the key drivers of growth for these small pacific island nations? I would expect tourism and natural resources to be pretty central to these economies. Is there anything else? What are the ...
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1answer
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Best resources to self-educate myself in economics

I want to learn Economics by myself and I'm looking to build a path with people who're in this field to how and in what order should I learn Economics, I did some research and I've found many ...
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2answers
325 views

Is it true that $\frac{dL}{dq}=1/\frac{\partial q}{\partial L}$?

Marginal costs MC is defined as $MC=\frac{dC}{dq}$. Taking into account that $C=wL+rK$, $$MC=\frac{dC}{dq}=w\frac{dL}{dq}+r\frac{dK}{dq}$$ Recall that marginal product of labor $MP_{L}=\frac{\...
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1answer
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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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1answer
179 views

Marginal rate of technical substitution for multi-dimension inputs? [closed]

Suppose I have a vector x = ($x_1,x_2,x_3,x_4,x_5$) of inputs. How it is the MRTS($x_1,x_2,x_3,x_4,x_5$) ? And which is the relation with the marginal products of inputs 1-5 ?
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1answer
72 views

How long are consumers willing to wait in order to find a bargain?

I have (what I believe to be) a microeconomics question that I'd like to explore: How long are consumers willing to wait to find a bargain on an item they'd like to purchase? I believe the ...
5
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3answers
592 views

Are there two different meanings of the discount rate?

Today I suddenly became aware of how the term "discount rate" are frequently used in two different contexts: When people prefer to have something now rather than in the future. The reason is ...
2
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1answer
80 views

Indirect Impacts Of The Netherlands Cutting Greenhouse Emissions?

On 24 June 2015, the Dutch District Court in The Hague ruled that the government must put policies in place to deliver, by 2020, cuts in the country's greenhouse gas emissions of at least 25%, ...
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2answers
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Why do top professional sport players get usually paid so much?

I'd like to find an answer to this question as I can't see how something like this can be happening. I can see three reasons that they would earn that much but any of them if thought better is wrong. ...
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0answers
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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 ...
3
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1answer
172 views

Monopoly with price discrimination

A city has a single electricity supplier. Electricity production cost is $c$ per unit. Utility function $U(q,t)=a\ln(1+q) - t$, where $q$ is electricity consumption and $t$ is electricity tariff. What ...
3
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1answer
49 views

Is there existing research on predicting the number of house listings based on exogenous data?

I've been looking for prior research by economists that predict the number of house listings in a particular city (or even, say, the probability that an individual in the city will list his house that ...
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0answers
126 views

Appropriate economic/econometric tools to analyze segmented promotion optimization problem

I'm trying to determine which micro-economic/econometrics concepts, models, and/or tools are appropriate for an analysis of promotions. Below I Describe the problem in general terms Give ...
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1answer
1k views

Present-bias vs future-bias

There is a huge literature in economics that studies time-inconsistencies in decision-making and that consistently finds that individuals make present-biased choices in a variety of contexts: we do ...
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1answer
77 views

Is the lack of information on customer behaviour good for banks?

Discussing chapter 18 on Microeconomic Theory Basic Principles and Extensions - Nicholson and Snyder book - regarding Asymmetric information a student raise an interesting point of view regarding the ...
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3answers
117 views

Empirical studies on network equilibria

There have been a number of papers in the literature (pioneered by Sanjeev Goyal, Jackson, Kranton, amongst others) emphasising the role and importance of network structure in economics, the ...