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.
This at once leads to a general. definition of Economics. Economics is the social science that studies economic activities. This definition is, however, too broad. It does not specify the exact manner in which the. economic activities are to be studied. Economic activities essentially mean production, exchange. and consumption of goods and services. However, with the progress of civilisation, the. complexity of the production, exchange and consumption processes in society have increased. manifold.