Which Act prevents monopolies and conspiracies from fixing prices, fixing bids, or dividing a market between competitors? The Act prevents monopolies and conspiracies from fixing prices, fixing bids, or dividing a market between competitors.

The Sherman Act,

The Sherman Act, or Sherman Antitrust Act, prevents monopolies and conspiracies from fixing prices, fixing bids, or dividing a market between competitors. The Sherman antitrust act tries to prevent the rising of price, to protect consumers from abuse, to foster a competitive marketplace and legitimately successful business and to avoid unilateral agreements which are anticompetitive and attempts to monopolize the market.