Questions tagged [supply-and-demand]

Supply and Demand is an economic model of price determination in a market. Demand refers to how much (quantity) of a product or service is desired by buyers. Supply represents how much the market can offer.

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3answers
1k views

Price Elasticity of Demand for Positive Price Increases

What does it mean when the price elasticity of demand %Qd/%P is greater than one? Typically I hear that it means the demand is elastic since if, say, the price decreases by 1% the demand for the ...
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6answers
472 views

Have automation and technological advance been shown to have a positive impact on society and the economy or a negative one?

My friends and I, 2 of which are computer science majors think it is worse because is humans can't work and thus afford necessities, how will they survive? The definition of automation: the use of ...
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4answers
2k views

What are Giffen Goods?

What exactly are Giffen goods and are they of purely theoretical interest or has there been empirical evidence of their existence?
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2answers
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Which utility function yields a constant price elasticity of demand function?

How do I know which utility function I can use to find an isoelastic demand function, e.g., $x(p)=Ap^a$? And similarly, which cost function can I use to find an isoelastic supply function? Does it ...
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2answers
2k views

How to estimate empirically a demand curve

Suppose I have a small business that sell ice creams. An Icecream cost 2$, and every day I have different values of sales. ...
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4answers
13k views

Will price increase as demand increase?

I know the law of demand which states that if price of a product increases then the demand will decrease In this, I think we assume that price is a function of demand. But I feel otherwise i.e. ...
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1answer
114 views

The law of supply and demand - How does it work?

I've learned what the principle of supply and demand says, and would paraphrase it like this: The price of a good is at equilibrium when supply and demand are equal. Or with other words: The price ...
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2answers
264 views

Supply curve for a competitive firm with constant MC

I know that for a perfectly competitive firm, the supply curve is given by $p=MC \ge AVC$, where $AVC$ is the average variable cost. Now I get really confused when the $MC$ comes out to be a constant....
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8answers
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Why does quantity supplied increase with price in economics?

The Law of Supply is my worst enemy in economics because I could never truly understand it, and as a result, the stuff I learned after that was built on a weak foundation. The Law of Demand is totally ...
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1answer
139 views

Can marginal revenue be increasing?

As per my calculations, the derivative of the MR curve is given by: $MR'(q)=2p'(q)+qp''(q)$, where $p(q)$ is the inverse demand curve. Therefore,for a downward sloping demand curve, if the second ...
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2answers
103 views

Modelling Pay what you want

I have been trying to model a Pay What you Want scheme. Now, for a monopoly it is clear that monopoly will have more profit by setting monopoly pricing assuming all players are selfish. But consider a ...
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1answer
340 views

Supply/Demand of Smuggling

I am attempting a (very) basic analysis of smuggling from one economy to the other (Venezuela to Colombia) - arising from price ceilings ceteris paribus. e1 are the equilibria without intervention (...
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2answers
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Re-evaluation of Consumer Price Index (C.P.I.) weights

How are the weights of the various household items in the Consumer Price Index (C.P.I.) basket decided, i.e., how are they re-evaluated every year? Is it done manually or automatically? If its done ...
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1answer
39 views

What is the difference between the demand schedule and the demand curve?

What is the difference between the demand schedule and the demand curve that a monopolist or monopsonist has? Could someone provide details for both cases or even some paradigm or a graph. I can not ...
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0answers
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$a\geq 0$, $x\succsim y$ implies $x+a\succsim y+a$ so the preference is linear?

$\succsim$ is a continuous and local non-satiate weak order. $x,y,a$ are vectors in $\mathbb R^n$ We say $a\geq0$ if all directions of the vector $a$ is greater or equal to zero. We want to prove (...
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2answers
403 views

Why Law of Supply indicate direct relation between price and supply?

According to Wikipedia, the Law of Supply states that: an increase in price results in an increase in quantity supplied. However, if the market was overflowing with a particular good (meaning ...
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1answer
1k views

Supply curve when the marginal cost is zero

The supply curve is built as the average marginal cost (MC), when the MC is equal or higher than the average cost (AC) The marginal cost increases, as a result of the opposite effect of marginal ...
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0answers
688 views

How price and quantity of ice cream sold changes when the price of yogurt reduces?

I am a newbie at economics and would appreciate help from the community. Question Use the model of supply and demand to explain how a fall in the price of frozen yogurt would affect the price of ...
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2answers
7k views

Determine the homogeneity of a demand function

If a demand function $X(P_X, P_y, I)$ depends only on prices and income. Is this function a homogeneous function?