The last several decades have seen an increased concentration of media ownership by large private entities. In the United States, these organizations are known as the Big Six. They include: General Electric, Walt Disney Co., News Corporation, Time Warner, Viacom, and CBS Corporation. A similar approach has been taken in Canada, where most media outlets are owned by national conglomerates. This has led to a reduction in the number of voices and opinions communicated to the public; to an increase in the commercialization of news and information; a reduction in investigative reporting; and an emphasis on infotainment and profitability over informative public discourse.