Questions tagged [price]

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74
votes
5answers
17k views

Why is the oil future price negative?

I don't understand why the price of oil futures went negative today. News say it is because sellers cannot sell it. But, why don't they just hoard it until the coronavirus crisis is off? Why don't ...
16
votes
10answers
12k views

Car prices haven't changed in 20 years, no inflation?

I notice that there seems to be little or no change in car prices over the last 20 years and they seem to be unaffected by inflation. For example, a Toyota Camry sold for about \$23,000 +/- \$2,000 (...
14
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5answers
2k views

The supply and demand of Virtual Products

We know that the fundamental economic problem is scarce resources relative to unlimited wants. **Does this apply to apps and Ebooks?**They are essentially virtual products who have in theory have ...
12
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7answers
3k views

Does a store suffering increased theft generally cause higher prices?

If a store suffers an increase in theft, will it generally lead to higher prices at that store? My answer is that prices should have already been set to maximize the trade off between profit-per-sale ...
11
votes
5answers
1k views

Why isn't the cost of shoes affected by their size?

I have noticed that many shoe selling shops I have visited have the same price tag regardless of the shoe size. Intuitively I'd think the bigger the shoe the more material and consequently capital ...
10
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3answers
3k views

Why do low-budget films charge the same amount at the box office as super-high budget films?

In most occurrences, lower production costs translate into lower sales costs. Obviously there are other factors that influence price, including perceived value (affected by advertising), monopolies, ...
8
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3answers
1k views

What is the mechanism that triggers a stock price change?

When discussing with my son basic economics (how the price is driven by demand, among others), I came to wonder which exact mechanism triggers a price change in a stock exchange. In everyday life, ...
7
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1answer
93 views

Measuring effects of degree of (buyer) competition on price: references

I would like to examine the effect of degree of competition (market power?) among buyers on price of a product. I have data on product price, number of buyers with nonzero purchases and a couple more ...
6
votes
4answers
185 views

What does economics say about “price gouging” during an emergency?

Many states have laws against "price gouging" during an emergency. Are these laws counterproductive? Take the current situation with toilet paper and water. When someone sees rolls of toilet paper ...
6
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3answers
173 views

When to use the market and when to use central planning?

I have a basic question: my understanding is that in a market economy, economic decisions are governed by prices, i.e prices signal what should be produced & how much. This is opposed to central ...
5
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2answers
620 views

What Creates the Price in the First Place

I just wanted to know if price changes how much quantity is supplied or demanded then what creates the price in the first place? If you say that price affects supply and demand and supply and demand ...
5
votes
1answer
42 views

Are short-let platforms really contributing to rising rent prices?

Short-term rent services such as AirBnB are often criticized for eroding the communities by increasing rent prices for locals: ... as short-term letting transfers much-needed housing from the ...
5
votes
1answer
827 views

Simple model to predict oil prices

Back when Hugo Chavez was still alive (former leader of Venezuela), he said they made "simulations" to predict how much oil prices will increase if they retire the supply of oil they were giving to ...
5
votes
2answers
160 views

Can Linear Supply-Demand Equilibria Be Understood as a Feedback-Control Process?

I'm not an economist, but rather an applied mathematician working in control theory. I've recently been watching Berkeley's intro to econ course in a personal project to better understand economics ...
5
votes
1answer
446 views

How does Brouwer's fixed point theorem relate to Walrasian equilibrium?

I am trying to understand Walrasian equilibrium and its connection to fixed points, especially how we can apply Brouwer’s fixed point theorem to the notion of Walrasian equilibrium. I understand the ...
4
votes
2answers
958 views

Including (demand) price elasticity in a price regression model

I am wondering how to include price elasticity (demand side) in a linear price regression model that is based on asuming price is the result of demand=supply. Constructing a price regression under ...
4
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2answers
81 views

Externality and Output

In a positive externality, can government just set the price to the socially efficient price instead of a subsidy to correct an externality?
4
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3answers
6k views

Why is the Market-Clearing Price also an Equilibrium Price?

When the price is such that supply equals demand for e.g. bicycles, everybody who wants to buy a bike at that price gets one, and every bike gets sold. Everybody goes home happy and the marketplace ...
4
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1answer
66 views

Effects of price transparency

Company I work at provides software services. After customers sign up, they then can go and order different combinations of services and consume them. We do not expose prices within the flow of them ...
4
votes
1answer
57 views

Production choices in Hayek's theory of information-bearing prices

As I understand the work of Hayek, he asserts that prices encapsulate the true societal worth of the item being sold by integrating the compound need for all of the ingredients and work which go into ...
3
votes
2answers
122 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
votes
1answer
221 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 ...
3
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4answers
219 views

How to track costs and calculate price?

I run a large Massively Multiplayer Online (MMO) gaming community and one of the services we’ve try to provide to our members is crafting. One of the challenges of this has been determining the price ...
3
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1answer
60 views

How does fuel tankering save airlines money

The aviation industry practice of fuel-tankering has been in the news recently. As the BBC describes it: "planes are filled with extra fuel, usually to avoid paying higher prices for refuelling at ...
3
votes
1answer
1k views

Why two goods are of different types of Cross Elasticity if we swap them in formula?

I am using this formula for calculating Cross elasticity of demand: $ E_{XY}^D = \Large\frac{(Q_2^X - Q_1^X)(P_2^Y + P_1^Y)}{(Q_2^X + Q_1^X)(P_2^Y - P_1^Y)} $ If $E_{XY}^D$ > 0 Then goods X and Y ...
3
votes
1answer
162 views

Why CPI differs so much from consumption deflator?

Why are the two series so different for the US? Data is here: https://fred.stlouisfed.org/graph/?g=lqVJ and photo added below: Private consumption in GDP should include all items consumer by ...
3
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2answers
67 views

Recent estimates of CPI bias?

The Dec 1996 Boskin report (May 1997 AER summary) concluded that the change in the Consumer Price Index (CPI) overstates the change in the cost of living by about 1.1 percentage points per year (...
2
votes
4answers
498 views

Why do companies launch products at much higher prices, only to reduce the price drastically after a few months?

I see this to be a prevalent trend - companies too often launch products at much higher prices than they know is gonna lead to good sales numbers, only to reduce the price drastically after a few ...
2
votes
1answer
264 views

Proof that utility is nonincreasing in prices

The following is a proof that the indirect utility function is nonincreasing in prices, but I can't understand the last step. How do they conclude that $v(p_1, y) \ge$ from the previous reasoning? ...
2
votes
2answers
59 views

What impact would introducing 15 times more soy worldwide do to the price of soy?

Soy is a commodity and the main export of Argentina. It is said Argentina has 40 million of hectares of arable land and it produces food for 400 million persons and that potentially could make food ...
2
votes
1answer
44 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 ...
2
votes
1answer
35 views

Why does a lack of pipelines cause Canadian crude oil to trade at a discount compared to US crude oil?

There is an ongoing political battle in Canada about the proposed expansion of the Kinder Morgan Trans Mountain pipeline. One argument in favour of the expansion that is repeated by just about every ...
2
votes
2answers
211 views

It's unclear how market equilibrium is reached in case of overproduction

Let's assume that there is disequilibrium, namely that $P=P_2$, thus $Q_s > Q_d$. In other words, there is overproduction. This is perfectly competitive market, so competition between producers ...
2
votes
1answer
209 views

Is it valid to compare cryptocurrencies by using their smallest divisible unit?

I'd like to compare the relative value (in USD) of three cryptocurrencies: Bitcoin, Ethereum, and IOTA. (See spreadsheet below.) Specifically, I'm comparing the price of each currency's smallest unit ...
2
votes
1answer
40 views

Price Changes in Factor and Product Markets

I think something is wrong in my reasoning, and I can't really find out what it is Lets say the supply of labor decreases in a market. That would mean that the wage rate would increase in that market....
2
votes
1answer
53 views

Why does one have to ask for a quote to get a price for some things?

When ordering items from some companies, they don't have their prices listed. One rather has to ask for a quote to get a price, having to provide information to do so. Why is this? Why do they not ...
2
votes
1answer
238 views

The relationship between indirect utility and expenditure functions

I am trying to understand the fact that $e(p, v(p,y)) = y$. There is a proof in the text Advanced Microeconomic Theory (Jehle and Reny) that states the following: Because $u(·)$ is strictly ...
2
votes
2answers
625 views

Two-good economy, can we tell if the demand of good 1 rises or falls when the price of good 2 rises (price of 1 is constant)?

Suppose we have a two-good economy, and we know that good 1 is a normal good. Can we then make any meaningful observation about the demand for good 1 when we change the price of good 2 and keep the ...
2
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0answers
16 views

How much precious metals prices come from their use as investement vs practical use

Some precious metal price come almost exclusively from their value as an investement, as gold, while some others like palladium or osmium have important uses in industries. But lately those metals ...
2
votes
1answer
30 views

Measuring quantities for price indices?

I'm confused about how one acquires the data necessary to compute price indices--specifically, how one acquires quantity data. Suppose I wanted to compute the Laspeyres Index, defined as $\sum\...
2
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0answers
36 views

Price Synchronization in the Calvo Model

In the paper Gorodnichenko, Sheremirov and Talavera (2014) the authors compute empirically the degree of price synchronization across different goods. In a nutshell their definition of synchronization ...
2
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0answers
66 views

How to estimate signifcance of price difference?

I am trying to estimate how significant is a difference between two prices. Preface It seems to not be percentage, as price difference of \$0.10 vs \$0.09 wouldn't make me go for the cheaper shop ...
2
votes
0answers
60 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 / # ...
2
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0answers
1k views

Price Floors and Subsidies

Why would a government choose to impose a price floor for agricultural commodities when subsidies would prove to be more beneficial for not only consumers, but also the government itself, since they ...
2
votes
1answer
36 views

Why is there less price transparency in some industries (especially healthcare) than in others?

To give a specific pair of contrasting examples: If I search for homes for sale in say Michigan, I can quickly see the listed price for each home. (See e.g. Zillow.) Sure, there might be taxes, ...
1
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2answers
113 views

Whats the math behind calculating the price of cryptocurrency through supply and demand?

"The value of currencies (including most popular cryptocurrencies) is set by a market. Price rises or falls until the supply and demand of the currency are equalized" Why exchange rates of national ...
1
vote
2answers
33 views

Is there a correlation between pharmaceutical prices and drug dealers?

Question: Is there a quantitative or some kind of correlation between the number of drug dealers in a certain region and the price of pharmaceutical drugs? This is for a case I'm working on, but I ...
1
vote
1answer
42 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 ...
1
vote
1answer
73 views

The existence of free lunch

Is there a free lunch or something beneficial but with zero price? Is air in an unpolluted area free lunch? If so, the sentence "there is always a tradeoff between benefit and cost" is not in general ...
1
vote
2answers
237 views

What's a “correct price” really? Does it exist?

Lately I've been thinking about the concept of price setting in market economy. There are various (perhaps naive) view on this such as: The price is always the optimal for the buyer and the seller. ...