Questions tagged [elasticity]
Elasticity is the measurement of how responsive an economic variable is to a change in another.
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What are markets where prices are really subjective called? [closed]
Market for lemons comes to mind but that has to do with consumer uncertainty about the quality of a product. What do you call a market where quality is easy to verify, but price isn't, and price is ...
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28 views
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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How do non-price determinants of supply and demand affect the price of a product? [closed]
I am currently doing my IB economics homework about demand and supply, and this question just has me very confused
The teacher then specifies that they must be non-price determinants. To my ...
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1answer
60 views
Relation between marginal cost and output elasticities
Does anyone know of any results that show the link between marginal cost and the output elasticities analytically? I am looking at production and cost theory books but can't find any results that ...
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When do workers versus capital owners share of income increase?
The share of total income obtained by workers rather than capital owners is for obvious reasons of interest. Assuming that the economy can be desribed by an aggregate production function
$$Y = F(K,L)$$...
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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
18 views
What's the minimum number of datapoints in order to run a diff-in-diff?
I was thinking about running a diff-in-diff with fixed effect in order to deal with a panel data experiment. The problem is that I don't know how many datapoints I need in order to the experiment be ...
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Does elasticity make sense for different levels of prices? If not, how can we fix that?
Let's say we know that our customers can't make sense of a raise in 5% of the price. It's too little for them to notice. However, an increase above 10% is easily noticed. If this is true, different ...
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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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Does Modern Monetary Theory (MMT) provide a useful insight into how to manage the economy?
According to advocates of MMT, the primary risk once the economy reaches full employment is inflation, which can be addressed by gathering taxes to reduce the spending capacity of the private sector. ...
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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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Homework Question - Price Floor / Elasticity of Demand
I'm currently taking undergrad microeconomics and came across the following question:
The current price floor in the agricultural lettuce market makes it such that price of lettuce is 25% higher than ...
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37 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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2answers
251 views
First order condition of log functions in general and interpretation
In the following, a first order condition for a log function is calculated.
I know how the left part was calculated, however, I am a little bit confused where the gamma on the right site comes from ...
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107 views
Long-term equilibrium price inelastic?
I have doubts about some
economic interpretation:
Why is the long-term equilibrium price inelastic?
But in the short run, the equilibrium price is not necessarily inelastic. What is the economic ...
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1answer
68 views
Production function and elasticity
Let $y=x_1^\alpha x_2^\beta$ where $\beta=1-\alpha$ be a Cobb-Douglas production function.
Find the elasticity of the optimal demand functions (for minimizing production cost) for both goods wrt. $w_2/...
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1answer
175 views
Elasticity of demand
I'm reading a paper from Pindyck (1988) where $$P_t=X_t-\gamma Q_t.$$ $P_t$ is the price, $X_t$ is the demand state variable, $Q_t$ production and $\gamma\geq0$ is apparently the ''(constant) demand ...
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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 ...
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1answer
31 views
Profit-maximization for a monopoly
Between two countries, Richland and Poorland, with a strict ban on cross-border sales agreed with the Poorlandian government. The respective demand functions for both countries are:
$Q_{poor} = 10 - ...
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1answer
71 views
Elasticity Cobb-Douglas productionfunction
I am given the production function
$y=x_1^\alpha x_2^{1-\alpha}$, where $0< \alpha <1$ I found the demand functions for minimum production cost to be
$ x_1^{*}(w_1,w_2,y)=\left ( \frac{w_2}{w_1}\...
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1answer
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What does the following mean: "supply has positive elasticity”?
What confuses me in particular is that I always thought of the concept of ‘elasticity’ with respect to something. That is, supply of x can be elastic with respect to y.
Am I missing something?
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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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1answer
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Solving problem for optimal price (maximize profit) *attempt inside*
Let a demandfunction be defined as
$D(p)=B-bp$, where $b,B>0$. A firm has some production cost, $c$, and can set the price $p$ under the constrain given by the Demand.
What is the optimal price?
...
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Do barriers to entry increase the (collective) market power of incumbent suppliers?
For example in the case of the labour market lower immigration means that low-skilled labour can ask higher wages or better conditions (other things equal). Low skilled labour may have even put the ...
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36 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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1answer
34 views
Elasticity of intertemporal sustitution with composite CRRA function
In the usual CRRA $\frac{c^{1-\sigma}-1}{1-\sigma}$ function we have that the intertemporal elasticity of sustitution $\partial\frac{c_{t+1}}{{c_{t}}{\partial r}}$ is $\frac{1}{\sigma}$.
But how can ...
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1answer
46 views
Examples of bounded, positive, inverse demand curves
The three most common examples of demand curves I am aware of are
\begin{align}
Q&= b - aP,\\
Q&= bP^a,\\
Q&= b e^{-aP}\\
\end{align}
The first being our classic linear demand curve, the ...
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1answer
22 views
Price elasticity of demand of CES
Anyone would like to help me show the following ( or a book/paper reference would be a great help)
" The price elasticity of demand is equal to $\sigma$ for the demand function of CES preference,...
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1answer
46 views
Is saying that the demand is elastic or inelastic too oversimplified?
As we know that elasticity varies from infinity to zero as we move along a linear demand curve, then is it correct to label any demand curve elastic or inelastic as a whole?
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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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why does income of executives level out in the long term after tax increases?
Marginal Revolution University has the following question in its Elasticity unit:
In 1993, then President Clinton passed a law raising income taxes.
This tax hike was fully expected: He campaigned on ...
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130 views
confusion regarding elasticity of a demand curve
The following question is on a quiz at Marginal Revolution University:
https://mru.org/practice-questions/calculating-elasticity-demand-practice-questions
The elasticity of demand is 2.0. Is the ...
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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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1answer
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Interpretation of Demand and Cost Curves
I am currently starting on the topic of monopolies in school and I encountered the following scenario:
A monopolist faces a demand curve given by $Q = \frac {100} p$ and a cost function given by $C = ...
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Microeconomics undergraduate ELASTICITY help (differentiating log-linear demand curve) [closed]
How do you show that the price elasticity of demand is a constant if the demand function is log-linear? To show this, how do you differentiate the log-linear demand curve to determine dQ/dp, and ...
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1answer
113 views
Log log regression with fixed effects and cross elasticity of demand
I have a time series of units sold, and price. I'd like to calculate elasticity of demand wrt to price and a few other variables, some of them are fixed effects.
...
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1answer
237 views
What is the empirical price elasticity of demand for insulin?
A lot of textbooks say that demand for insulin is perfectly inelastic. I don’t think this is quite true (and I am a type 1 diabetic). It’s clearly very inelastic, but not perfectly so. There are ...
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Regression approximation for the rate of change in occupancy rate of residential market with respect to price
I have historical data on occupancy rates for a given neighborhood, along with characteristics and other local economic variables.
I am looking to estimate the regression equation with occupancy rates ...
2
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1answer
52 views
Piketty's explanation of elasticity of substitution (from his book Capital in the 21st century)
I have some trouble following the explanation of the elasticity of substitution between capital and labor and its implications on p189.
Take this part:
The relevant question is whether the elasticity ...
3
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2answers
123 views
Terminology, is elasticity used as “mean elasticity”?
Given a demand $q$ and a price $p$ sutch that $q=q(p)$, the elasticity of demand is given by,
$\epsilon = \frac{p}{q}\frac{dq}{dp}$
which depends on the price.
But, when reading papers about ...
3
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2answers
108 views
elasticity from inverse demand
I was wondering of my thinking here was right:
Given $$ e=\frac{dQ}{dp}*\frac{p}{Q}, $$ where
$ e $ is elasticity, $ dQ/dp $ is first derivative of demand function, $p$ is price and $Q$ is quantity.
...
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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 $...
3
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1answer
100 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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Using ML to estimate demand function
Say, I am looking to estimate the demand curve for rental of a real estate property. The demand varies depending on time of the year, location, economic and demographic variables.
I'd like to ...
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1answer
495 views
Why is the graph of unitary elastic demand a hyperbola?
My teacher said that the graph of unitary elastic demand is a parabola:
But i fail to understand how in a hyperbola the percentage change of price and quantity demanded remains same. Can someone ...
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Can there be elasticity for income in an inferior good, when the price is out of its limits?
(Skip to 3. for the actual problem I am facing. Everything else is just to help you understand it better up to that point)
Two goods $X$ and $Y$ are substitutionals. For $P_X=20$ consumers ask for $Q_{...
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1answer
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How do you calculate the price of a good or service adjusted for scarcity?
For example, Widget A is worth \$100 when there are 50 of them available in the market, but the price goes up to $110 when there are only 40 of them left.
Widget B is worth \$100 when there are 50 ...
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2answers
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Calculating price elasticity by asking a “this” or “that” question
Let's say 2 goods exist: A for 10 and B for 20 (B is more premium in this example)
If I decrease the price of both goods by 10% and ask:
"Do you prefer A for 9 or B for 18 "
What sort of insights (...
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0answers
19 views
Elasticity of substitution of a general production function with labor-augmenting technological progress
I am following and trying to fully understand a famous and interesting work of Bentolila and Saint-paul (2003). They try to explain movements of the factor's share in terms of a relationship between ...
