After reading chapter 21 and conducting original research (minimum of five sources) discuss the evolution of anti-trust policy in the United States in both terms of statutes and interpretations. The paper should include at least the following main points:What types of mergers/business combinations existWhat has been the general trend in market concentration the past 20 years?How is market concentration measured?What was the first major anti-trust law and what are some important cases in American history?What is the consumer welfare standard for anti-trust?