What are resale price maintenance, tying arrangements, and predatory pricing?

What will be an ideal response?

Resale price maintenance occurs when a manufacturer agrees with a distributor about the minimum price at which the product will be resold. Resale price maintenance agreements are illegal only if they are anticompetitive. Resale price maintenance can create inefficiency if it allows the manufacturer to set the monopoly price for its product. However it can create efficiency when it enables manufacturers to induce retail sellers to give the efficient level of sales service for the product.
Tying arrangements occur when the seller agrees to sell one product to a buyer only if the buyer also buys another, different product. Tying can sometimes allow the producer to price discriminate and increase its profit. Tying arrangements can be illegal under the Clayton Act.
Predatory pricing is setting a low price to drive competitors out of business to then set a high, monopoly price when the competition has gone. If predatory pricing occurs, it can lead to monopoly but economists are skeptical that it occurs often because the firm trades off a sure loss for an uncertain future profit.