Japan's reservoir of industrial leadership and technicians, well-educated and industrious work force, high savings and investment rates, and intensive promotion of industrial development and foreign trade have produced a mature industrial economy. Japan has few natural resources, and trade helps it earn the foreign exchange needed to purchase raw materials for its economy.

While Japan's long-term economic prospects are considered good, Japan is currently in its worst period of economic growth since World War II. Plummeting stock and real estate prices in the early 1990s marked the end of the "bubble economy." The impact of the Asian financial crisis of 1997-98 also was substantial. Real GDP in Japan grew at an average of roughly 1% yearly in the 1990s, compared to growth in the 1980s of about 4% per year. Real growth in 2003 was 2.7%.

Given its heavy dependence on imported energy, Japan has aimed to diversify its sources. Since the oil shocks of the 1970s, Japan has reduced dependence on petroleum as a source of energy from more than 75% in 1973 to about 57% at present. Other important energy sources are coal, liquefied natural gas, nuclear power, and hydropower.

Deposits of gold, magnesium, and silver meet current industrial demands, but Japan is dependent on foreign sources for many of the minerals essential to modern industry. Iron ore, coke, copper, and bauxite must be imported, as must many forest products.