# 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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### 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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### 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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### 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 supply curves that start at the origin have a PES value of 1?

In my economics book*, in the lesson explaining what price elasticity of supply is, it's written: Any supply curve that starts at the origin has a PES value equal to 1. The theoretical outcome means ...
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### Finding own price elasticity/cross pirice elastcity

I am looking for a source where I can find the own price elasticity/cross price elasticity of public and private transport for the European countries and each continent. Does somebody know a credible ...
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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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### 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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### 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 ...
50 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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### 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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### 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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### 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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### 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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### 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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### 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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### 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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### 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 ...