Examlex
Which is an important element in the composition of your body that was produced by nuclear fusion inside a star or an explosion of a star?
Demand
The desire combined with the ability to purchase a specific quantity of a good or service at a particular price and time.
Supply
The total amount of a product or service available for purchase at any given price point in a market.
Purchasing Power Parity
A theory in economics that suggests that in the absence of transaction costs and other barriers, identical goods should have the same price in different countries when prices are expressed in a common currency.
Prices
Monetary values assigned to products and services which are determined by the interaction of supply and demand in the market.
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