As the economy has evolved, insurance markets have become more diversified, more efficient, and more accurate in assessing risk. Today, consumers have a wide variety of options when shopping for insurance, which has become a major industry in the United States, with revenues of roughly $800 billion and net income of around $40 billion annually. Numerous brokers and agents supply a wide variety of products to meet the needs of consumers. At the same time, insurance instruments are available from a greater number of sources, including self-insurance and financial services providers. Where allowed, competition has generated the results that would be expected in any competitive market—lower prices, a wider variety of goods and services, and more fully informed producers and consumers who can make more knowledgeable decisions about the insurance products they need. Nonetheless, insurance markets in most states remain heavily regulated, which raises costs for consumers.