In mainstream economics, economic surplus, also known as total welfare or total social welfare or Marshallian surplus (after Alfred Marshall), refers to two related quantities:

Consumer surplus, or consumers' surplus, is the monetary gain obtained by consumers because they are able to purchase a product for a price that is less than the highest price that they would be willing to pay.
Producer surplus, or producers' surplus, is the amount that producers benefit by selling at a market price that is higher than the least that they would be willing to sell for; this is roughly equal to profit (since producers are not normally willing to sell at a loss and are normally indifferent to selling at a break-even price).

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  1. Wess13

    Beretta 1951 & Helwan - The problems are fixed!

    Good day Fellow gun owners, I'm Wess and I'm a gun parts designer from The Netherlands ( You know ...Amsterdam ) and I specialize in hard to find.. basically unicorn parts. My first successful project is the locking block for the Beretta 1951 & Helwan line of pistols. It has taken me 2 years to...
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