In 1973, the Organization of Petroleum Exporting Countries (OPEC) nationalized oil resources, expelled U.S. oil producers, and withheld oil supplies. As a result, the price of oil and gasoline increased by 50% within months. Almost overnight, the field of energy economics emerged. Economists began to apply supply and demand to energy concerns of national security and everyday well-being. Energy policy became an important issue as the United States set a goal of energy independence. Energy economics uses the tools of economics to analyze the supply and demand of energy.

A higher education allows you to pursue a career that interests and inspires you. When you have the freedom to choose your career, you're more likely to enjoy it. Higher job satisfaction also comes from higher income, better employment benefits, and more advancement opportunities. What is the difference between higher education and university? Time management. The main difference between higher education colleges and universities is the degree to which you'll be responsible for your studies. At university, you'll be expected to undertake a considerable amount of individual study by reading up on your subject when you're not in lectures.