Alcohol advertising is the promotion of alcoholic beverages by alcohol producers through a variety of media. Along with tobacco advertising, it is one of the most highly regulated forms of marketing. Some or all forms of alcohol advertising is banned in some countries. The definitive study of advertising bans is J.P. Nelson, ""Alcohol advertising bans, consumption, and control policies in seventeen OECD countries, 1975-2000,"" Applied Economics, vol. 42(7), March 2010, pp. 74–87.Scientific research, health agencies and universities have, over decades, been able to demonstrate a correlation between alcohol beverage advertising and alcohol consumption; however, it has not been proven that alcohol advertising causes higher consumption rather than merely reflecting greater public demand. Many commentators suggest that effective alcohol campaigns only increase a producer's market share and also brand loyalty.