There are two basic types of metamorphic rocks. Foliated metamorphic rocks such as gneiss, phyllite, schist, and slate have a layered or banded appearance that is produced by exposure to heat and directed pressure.
Image by Picture Taking Fool. Industrial Economics is the study of firms, industries, and markets. It looks at firms of all sizes â from local corner shops to multinational giants such as WalMart or Tesco. And it considers a whole range of industries, such as electricity generation, car production, and restaurants.
Economics is the study of Economic Activities. There would not be Economic Activities (such as buying and selling) if there wasn't a scarcity of the resources that are needed â¦ to satisfy everyone's wants. Economics studies how scarcity causes people to make different choices.