Surplus causes disequilibrium in the supply and demand of a product. This imbalance means that the product cannot flow through the market efficiently. However, the cycle of surplus and shortage has a way of balancing itself out.
Environmental scanning is the term used to describe the acquisition and use of information gleaned from sources external to your company. Scanning can be thought of as a form of early-warning radar that lets managers look into the future.
What is needed is a method that enables decisionmakers both to understand the external environment and the interconnections of its various sectors and to translate this understanding into the institution's planning and decisionmaking processes. Environmental scanning is a method of accomplishing this.