List of top Economics Questions on Monopolist Mark-up

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Monopoly power is the ability to set price above marginal cost and that the amount by which price exceeds marginal cost depends inversely on the elasticity of demand. Reason R: Monopoly power is determined with the more number of firms in the market.

The mark-up as a fraction of price for the profit-maximizing quantity \( Q^{*} \) for a monopolist can be expressed in the following form:
\(\frac{p^{*} - C(Q^{*})}{p^{*}} = -\frac{1}{e^{*}}.\)
We can say from this that: