Examlex
Lower effectiveness of parental involvement in schools is found among parents with higher levels of socioeconomic status.
Network Externalities
The effect that the number of users of a product or service has on the value of that product to others, often leading to increased utility as more people use it.
Patents
Legal documents granting exclusive rights to inventors for their creations, preventing others from making, using, or selling the invention for a certain period of time.
Marginal Revenue
The supplementary income produced through the sale of one extra product or service unit.
Total Revenue
The overall earnings from sales of goods or services prior to any expense deductions.
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