Answer:
a.
FALSE
The argument above is in part inaccurate. In the long run, the monopoly dominant firms gain no economic profit at the profit generating production as their LRAC= LRAR at.
The firm is not effective economically (productively) though.
A monopolistically dominant firm is not successful effective because it does not achieve the average cost curve at the minimum level. The difference between supply and supply of the equilibrium at the minimum average cost is called overcapacity.
b.
FALSE
The monopolist has the power to make the price to maximize the profit. The monopolist, however, always has to respect demand rule of law. Its AR-curve is a sloping downward curve.
It indicates that if the monopolist decides to increase production, he will have to lower the price. It shows that to increase income, the monopolist can set its price but can not set any price.
c.
FALSE
The shut down point for reasonably competitive firms is Price= AVC.
When the price falls below the average cost of the product, otherwise the business must shut off.
Otherwise, the business must continue to manufacture until the price falls below the average cost of the product. It will still deliver, even if the average income or price is below the average output.