Respuesta :

Supply-side economics argues that changes in marginal tax rates affects incentives to work. Thus, option (a) is correct.

What is supply?

Supply refers to make the availability of the products and services in the market. It fulfills the needs and desires of the individual as the products are supplied to the customers.

According to supply-side economics, changes in marginal tax rates alter labor incentives. It improves the situation of the economy, by cutting the tax rates.  Therefore, it can be concluded that option (a) is correct.

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Your question is incomplete, but most probably the full question was...

a-marginal tax rates

b-marginal income

c-marginal profit

d-marginal cost.

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