The IndustrialRevolution was a period from the 18th to the 19th century where major changes in agriculture, manufacturing, mining, and transport had a profound effect on the sociioeconomic and cultural conditions starting in the United Kingdom, then subsequently spreading throughout <span>Europe</span> north America annd eventuallly the world.
These <span>ups and downs in an economy are often referred to as</span> "business cycles". These cycles are to be expected and don't cause great alarm for economists or investors.