Questions tagged [elasticity]

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

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Elasticity of Durable Goods vs Non-Durable Goods

Does anyone know any seminal reference (either a paper in a top economics journal or a book) that compares own-price elasticities of demand for durable vs non-durable goods? My intuition tells me ...
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Why does short run market supply become more elastic with more firms

I have heard a justification along the lines of this: The supply curve becomes flatter (more elastic) with more firms in the market, because a given increase in price calls forth more production when ...
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Question about using elasticities to compare difference rates but with different normalization

Lets say I am estimating a regression of a death rate per 100k people on an economic shock, so: $y = \beta_o + \beta_1 * X+ error$ where the dependent variable is the death rate, and x is the measure ...
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1answer
112 views

Find Price Elasticity of Demand for p = 0

Given a linear demand curve $q(p) = a - bp$, how would one find the price elasticity of demand at $p = 0$? The quantity that would be demanded is given: $Q_0 = a$ The formula for the price elasticity ...
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Price elasticity on comparison website. How to calculate price elasticity using the coefficient of the products position on site?

I am looking at the following paper. Glenn Ellison & Sara Fisher Ellison, 2009. "Search, Obfuscation, and Price Elasticities on the Internet," Econometrica, Econometric Society, vol. 77(2), pages ...
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196 views

Production in the long run - calculating wage and rental elasticity of demand

I have data for a business firm for two periods. The data include: output (Q), capital (K), labor (L), wage (W) and the rental rate of capital (R). Here they are: ...
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61 views

Addressing endogenity in price elasticity and the Promotion Optimization Problem

I have data on purchases gross prices discounts (like coupons) net prices (i.e. gross price - discounts) number of leads (potential customers at any given time) conversion rates (# purchases / # ...
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Why do lumber prices soar but cost of gypsum does not drop?

The cost of lumber has increased 3 fold over the last year, whereas the cost of other building materials such as gypsum has hardly budged. In North America, lumber is a dominant material used in the ...
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1answer
40 views

Why wouldn't other firms follow suit if an individual firm decides to cut its price?

Why doesn't the demand curve an individual firm faces in a perfectly competitive market have the same elasticity as it does in a oligopolistic market? Under perfect competition, if a firm increases ...
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17 views

Estimating $dL/dw$ with direct dependencies using total differential

I have $U(C,L) = U(C) - v(L)$ where $C$ is consumption and $L$ is labor supply. From my first order conditions, $C$ is a function of $w$, wage, and $L$. $L$ is a function of $w$ and $C$. Leisure is $N ...
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What does the elasticity say about the fraction of total cost used on input 1?

A firm have the following production function $$ y=x_{1}^{\alpha} x_{2}^{1-\alpha}, \quad 0< \alpha < 1 $$ $w_1>0$ is the cost of input 1 and $w_2 > 0$ is the cost of input 2. (1.1) ...
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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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19 views

Market structure determination

I will be conducting a research about the market structure of an outdoor farmers market. I wanted to know what kind of survey questions could help me for example to determine the PES of the market or ...
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68 views

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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16 views

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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147 views

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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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}...
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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 ...
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74 views

Demand Elasticity, Factor Substitution: Independent?

Given $ Y=f(K,L;\sigma) $, the effect on labor from a change in the price of capital can be gauged through a substitution effect and a scale effect: \begin{align*} \frac{\partial L}{\partial r} & ...
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42 views

Elasticity of Substitution between 2 factors, without knowing relative prices

I'm trying to figure out the elasticity of substitution between input $s$ and input $v$. I know that the marginal rate of substitution between these two inputs are $\frac{v^2}{s(v+k)}$, where $k$ is ...
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56 views

PED and change in revenue

Ok so I was arguing with my teacher about this one question: Based on the price elasticity of demand coefficient determine whether the price should be increased or decreased for revenue to increase. ...
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Elasticity of substitution meaning

If I computed an elasticity of substitution of f.e. 0.9 between capital and labour, does this implicate that the factors are rather well substitutable or not? Since for 0 they are perfect complements ...
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23 views

Raising the elasticity of substitution in an economy

Papers such as de la Grandville (1989) and Klump/de la Grandville (2000) have shown that a higher elasticity of substitution leads to higher economic growth. My question is, if there is a way to ...
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112 views

Elasticities and exponents

Given the following 3 equations: $$ Y^*_t=100+3t \\ Y_t = Y_t^* (1+(0.2 (\sin t)) \\ B_t=B_t^* (1+(0.4 (\sin t)) \\ $$ And take B* to be the following, but is unknown: $$ B_t^*= \alpha Y_t^* \\ $$ I'...
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How much does one percent of unemployment 'cost'? (Unemployment elasticity)

There is always debate that increasing minimum salary will pour in more money into the budget as those who get minimum salary will spend them immediately. The counter argument is that increasing ...
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Why does the US have such low price flexibility?

I am speaking only from an observational point of view and don't have any experimental data to back-up my observations so feel free to correct me. Why does the US appear to have a market that does ...
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27 views

Time affecting price elasticity of supply

I'm given to understand that the supply of any product at one moment is fixed regardless of the price but on the long run the firm could produce more of the product and so the supply become more price ...
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1answer
69 views

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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1answer
512 views

Short term and long term price elasticity of currencies

If I have 1% of the world supply of US dollars, and I decide to sell all of them to buy Euros, how much should I expect the exchange rate to change? Is there some kind of empirically determined price ...
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Can an inferior good be necessary?

Usually the definition of necessary goods is the income elasticity between 0 and 1. But can a good with -0.5 income elasticity be considered necessary? There is this link that says that all the ...
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Why do vacationers spend more on food and essentials than the locals?

I cannot think of an answer to this question from the chapter on elasticity in Tyler Cowen and Alex Tabarrok's Modern Principles of Economics, Second Edition: How might elasticities explain why ...
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Does it make sense to calculate price elasticity in respect to some percentage?

I was trying to calculate how much the price of a product impacts some company I'm analysing. At college, we learn that the price elasticity of demand is the percentage change in demand divided by the ...
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Elasticity of real marginal costs with respect to production

How does one get the formula for the Elasticity of real marginal costs with respect to production ($\omega$)? Woodford(2003) at page 152 says "$\omega$ represents the elasticity of s (real ...
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19 views

Are economic profits above normal for many firms in a perfectly-competitive increasing-cost industry?

In a perfectly-competitive constant-cost industry, all firms will have normal profits in the long run. This fact is very clear to me as the long run supply curve is perfectly elastic and hence each ...
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42 views

How can I formulate price elasticity of demand equation when I want to add cross price elasticity?

I am trying to calculate the price elasticity of demand for a product where I used the equation log(volume) = elasticity * log(price) + seasonality dummies + trend index + CPI Here CPI is the consumer ...
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7 views

Non Linear regression to obtain diminishing marginal effect / elasticity

I am working with some real estate data on housing units. For a given market, I have data on occupied units, rents, and control variables such as population, demographics, income levels etc. I'd like ...
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Question on estimating elasticity and cross elasticity with log-log regression model

For a regression model: Y = B0 + B1.X + B2.X2 + U, B1 and B2 is the marginal effect on ...
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If the Yield (Y) of the cosnumers change, does the $Q_{D}$ remain parallel?

Because we have a change in Yield (Y) which is a factor of demand, we have a move in the $Q_D$. However, not all changes in the Yield affect the $Q_D$ the same way right? For example, if we know that $...
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Necessary Goods, Price Elasticity, Long-Term Calculations

My question is a conceptual one, though it arose from a concrete calculation that I'm working on. I'm looking at the economic viability of thermal retrofits, and this author suggests including the ...
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1answer
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Finding data on (estimated) trade cost elasticities of imports

I'm an undergrad student of economics, and I need to find estimates of the trade cost elasticity of the UK's imports for some homework. My instructors pointed me to the World Bank's databases, ...
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23 views

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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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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256 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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2answers
704 views

Price optimization with demand forecast

I have one year sales data of a retail company and lets say I am forecasting the next month sales for the product. I have got the sales using time series in R. Now I want to forecast the price as well....
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1answer
237 views

How does an elastic Money Demand affects the effectiveness of fiscal policy?

From my notes: 'The elasticity of Money Demand reduces the impact on the interest rate of the increase in government spending...' My question is: if the Money Supply is inelastic, the elasticity of ...
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1answer
30 views

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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1answer
2k views

Inferior and normal good and the change in price of those goods

In general, We know that if a good is normal, then as your income increases, then demand of that good increases as well as price is fixed. Similarly, if a good is inferior, then as your income ...
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1answer
248 views

Price Optimization from Data

How can I find the optimal price that maximizes profits, given past sales data? I thought I could do this, but I've been running into problems. Data: ...