# Questions tagged [elasticity]

Elasticity is the measurement of how responsive an economic variable is to a change in another.

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### Supply elasticity of finite (non-renewable) resources

What is the elasticity of supply of a finite (non-renewable) resource that cannot be replaced (i.e. fixed stock)? Intuitively it seems like it should be inelastic, yet I can also reason elastic.
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### which is an example of demand curve that is always inelastic/elastic?

Which class of functions have the property of being always elastic?and instead always inelastic?
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### Can the effect of different prices of gasoline at different gas stations be measured?

I am looking for studies in which the effect on demand of different prices of gasoline at different gas stations in the same area is measured or estimated (on the same day or hour). This question ...
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### How to maximize total revenue on constant elasticy curve

So to maximize total revenue, we sell at the price on the demand elasticity curve where elasticity=1 right? Lets say on one curve, the elasticity throughout the curve is equal to 1.5? How much should ...
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### How high of a carbon fee would reduce global emissions by 50% in 15 years?

OVERVIEW OF THE EMF 32 STUDY ON U.S. CARBON TAX SCENARIOS https://www.worldscientific.com/doi/pdfplus/10.1142/S201000781840002X About half of the EMF 32 models met a 50% reduction in carbon ...
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### Is oil supply really inelastic in the short term

Is oil supply really inelastic in the short run? Though it remains evident that in the short run, the known capacities of oil can't be increased and hence we can assume that there remains a upper cap ...
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### Elasticity of substitution

So, this is an economics question but the problem I have is a pure math problem I guess. So I have the following equation:f(x,y) this function have the elasticity of substitution(EOS): 1/(1-beta). a,...
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### Confidence Intervals for Elasticity in Simple Linear Regression

I'm pretty sure this is a very simple question that I am missing something obvious. I have a simple linear regression with multiple independent variables. I want to calculate the elasticity (no ...
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### Mathematical framework for modelling the relationship between price and sales of a product

In my job as a data scientist, I am required to model the relationship between the price of a product and the sales or number of unit sold. I am trying to build a simplistic model, the assumptions of ...
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### (Microeconomics) Why must fims always lower prices when there is excess supply?

This may seem like a basic question but it has been really bothering me for a while. I understand what excess supply is, and my question is regarding the firms' response to it. All economics texbooks ...
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### How to simulate changes in quantity demanded when several prices change?

I am not sure if this is a straightforward question or not. Basically, I have a set of products along with their prices and quantities demanded. I also have own and cross price elasticities for each ...
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### Effect of a change in quality on price elasticity of demand

I am interested to know how one would expect a change in the quality of a product to affect its price elasticity of demand. Two example will illustrate my confusion: Example 1 Suppose a producer is ...
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### Why is elasticity not constant on a straight line graph?

There are different zones of elasticity on a graph, but if we are to imagine a negatively sloped, straight line on a price v quantity graph, we find that elasticity differs based on where we look on ...
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### Constant elasticity proof for log-linear demand curve

From Perloff 2008e solved 2.2: Q: Show that the elasticity of demand is a constant e if the demand function is log-linear, ln Q=ln A+e ln p. A: Differentiating with respect to p, we find that (dQ/dp)/...
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### Should a Price Elasticity of Demand model exclude items that sold out or marked down from the original price

Consider a Price Elasticity of Demand model built with linear regression to estimate the Percent Change in Quantity Demanded given a Percent Change in Price specifically for specialty items which have ...
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### How do you use a Log-linear model when you have negative Xs?

I am trying to us a Log-linear model to derive an elasticity. However, some of my Xs are negative numbers. Being as the model relies on the natural log of the Ys and the Xs, how can this model work ...
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### Engel’s Coefficient Data

Does anyone know of any good data sources where we can find Engel’s Coefficients by nation?
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### If $X$ is a Giffen good then $Y$ must be a normal good

While going through some problems as part of self-study I encountered the following True/False question: Q. Steven only consumes two goods: $X$ and $Y$. If $X$ is a Giffen good for Steven, then $Y$ ...
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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 does one do a hypothesis test for elasticity?

Given the regression output $$\widehat{\ln cons} = \underset{(0.6018)}{0.4054} + \underset{(0.0744)}{1.2739}\, \ln m - \underset{(0.1902)}{0.6666}\, \ln p_1 -\underset{(0.2645)}{1.6146}\, \ln p_2$$ ...
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### Can there be a good which has both Hicksian and Marshallian demand curves vertical?

Consider a perfectly inelastic (Marshallian) demand curve for a good X. Does this good also have a vertical Hicksian demand curve?
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So I was having a bit of trouble reasoning with the answer for this particular PED question. It goes like this: PED=1, Quantity Demanded=4,000 units when Price=$12 The question was: Find the price ... 1answer 55 views ### Calculating Price Elasticity of Demand Hi I was given the following price vs quantity values. ... 2answers 101 views ### Elasticity when the demand function is given Given the demand function,$ q = kp^{-\epsilon} $, how do I calculate the elasticity? As a result, I do know that the elasticity when the demand function is in this form is$ - \epsilon $. But I'd ... 0answers 35 views ### How to calculate Store/Category level Price elasticity? I would like to compare different retail stores at category level using the percentage change in the category volume produced by a uniform 1% increase in the prices of all items in the category. What ... 1answer 52 views ### How to Calculate Price Elasticity of Demand When Perfectly Elastic? When we have perfect elasticity, the demand curve is a horizontal line and the elasticity of demand coefficient is equal to infinity. How do we arrive at a solution equal to infinity? We know that ... 0answers 15 views ### Exploratory analysis about elasticity I have been asked to perform some studies about the price elasticity of demand of an online seller. The concept of elasticity used by economists are more clear to me after some research on ... 0answers 46 views ### Elasticity of employment in respect of reduction of working time If elasticity of employment in respect to working hours is positive then work time reduction decreases employment and the opposite is true if elasticity is negative? I mean if I want to see how ... 0answers 39 views ### 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 ... 1answer 45 views ### Demand Curve Price not perfectly elastic I'm trying to make the argument that our Sales go up when prices for all our Products are 30% off. Which I believe should be our new Regular Price. but our Demand Curve doesn't support this. Should I ... 0answers 18 views ### Increase of price of good and effect on elasticity of demand Price elasticity of demand of good A is 1.20. If we increase a price by 15% what will happen to quantity demanded of good A? My answer is 18% increase since % change in Q = 1.20 * %change P Is this a ... 1answer 40 views ### What's an example of a resource, raw material that has become scarce? I'm interested in the elasticity price demand that predicts that as a resource becomes more scarce, it gets more expensive. Regarding oil price this isn't clear. Is there an example of a resource ... 1answer 55 views ### Should Company B enter the market in the following cases Say Company A has a monopoly producing product E, at a constant marginal cost of$3$USD. Say the ideal number of units produced is$1$unit which produces a profit of$2$USD (=$P_{A}$). Next, ... 0answers 46 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? 0answers 17 views ### How to do elasticity modeling for products where there is slab pricing like electricity? I have few product categories eg prod1 prod2. Each category have similar products. So prod1 has 3 similar products with slight difference in features and prod2 has 5 products with slight differences. ... 2answers 830 views ### Elasticity and logarithms Let's consider a relationship between$ y $and$ x $,$ y = a x^b $. Taking log on both sides, we have $$\log y = \log a + b \log x$$ Now, my textbook, Nicholson and Snyder's Basic Principles and ... 0answers 15 views ### Supply elasticity on a piece-wise linear supply function The supply elasticity at a point is the willingness to produce more or less after the price has changed (due to whatever reason?).$$\mu_{Q,P}=\frac{\partial Q_S/Q_S}{\partial P/P}=\frac{\partial Q_S}... 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. ... 2answers 71 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 ... 1answer 222 views ### Elasticity of Supply for a Monopolist Is the supply of output for a monopolist less elastic than that of a perfectly competitive firm with the same production function? On one hand, it seems impossible to calculate the elasticity of ... 0answers 16 views ### primary impact on real estate prices/taxes Are my housing prices/taxes more influenced by the$40M beach house a few miles away from my home or those in the lower-class well beyond my county line? Assuming a few basics: there are differing ...
Throughout microeconomic literature i see the following restiriction placed on the nature of elasticities in demand system estimation. This being for some arbitarary good $x$ we require price ...