describe the historical changes in the economic sector over the last hundred years

Primary Sector

  1. As the method of farming changed and the agricultural sector began to prosper production increased.
  2. Many people could not take up other activities.
  3. It is the stage of the goods produced were natural products and most people employed in this sector.

Secondary Sector

  1. Because of new methods of manufacturing were introduced, factories came up ang started expanding.
  2. Farmers began to work in factories.
  3. This sector slowly becamethe most important sector in the total production and employment.
  4. Hence a shift had taken place. It means the importance of sectors had changed.

Tertiary Sector

  1. In the past 100 years there has been another shift from secondary to tertiary sector in the developed countries.
  2. The service has become the most important. in terms of total production.
  3. Most of the working people also employed in the service sector. These are observed in the developed countries.

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• there is a change of employment in different sectors of our ecenomy. • in initial stages of development, primary sector was the most important sector of ecenomic activity. • due to the increase of craftpersons and traders, buying and selling have increased. • new methods of manufacturing are introduced. • agriculture also need modern methods of production. • secondary sector has become one of the important sector for providing employment. • there has been a shift in the service sector due to the production unit in our country.
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We describe four megatrends since the end of the Cold War that relate to developing countries: a greater share of the global economy; more accessible technologies, particularly in communication; breakthroughs in global cooperation in tackling basic human needs; and the evolution of a complex set of problems in spite of the progress. We then examine potential political economy channels that might hinder the ability of international organizations to adapt to the new realities. Introducing the articles to the special issue, we argue for four distinct variables that affect the behavior and character of international organizations: power, norms, preferences, and problems.

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