Examlex
Animals that lack CXCR4 and CCR5 proteins are immune to HIV infection.
Black Markets
Illegal trading of goods and services that occurs outside of officially sanctioned channels, often due to laws or regulations.
Price Controls
Legal restrictions on how high or low a market price may go.
Binding Price Ceiling
A government-imposed limit on the price of a good or service that is below the market equilibrium price, leading to shortages.
Hybrid Cars
Vehicles powered by a combination of an internal combustion engine and one or more electric motors, using less fuel and emitting fewer pollutants than traditional cars.
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