Secondary economic activity, also known as the secondary sector of an economy, is the portion of the economy that is concerned with receiving raw materials and transforming them into serviceable items, properties or othe... More »

A primary economic activity involves sourcing or extracting natural resources from the land or bodies of water. Natural resources are those that occur naturally and are not manmade. More »

An economic continuum is a method of categorizing parts of the economy, starting with those parts closest to the natural environment and flowing to those parts furthest away from it, according to About.com Geography. Mor... More »

Four sectors of the economy are the primary sector, the secondary sector, the tertiary sector and the quaternary sector. The various sectors are defined by population engagement and by relationship to the Earth's raw mat... More »

The quaternary sector of an economy refers to the portion of a workforce comprised of highly skilled individuals who are proficient in information services or fields based on knowledge. As an emerging characteristic of t... More »

A planned or command economy is one in which major functions, such as production and distribution of goods, are controlled by the government. In a planned economy, the government owns some or all production facilities an... More »

Brazil's economy classifies as free market, which features an exchange of goods, services and commodities internally and with other nations. Brazil varies in degree of economic freedom; in the early 2000s, Brazil's econo... More »