The economic condition of the area is a condition that can change the balance between supply and demand.

The two different sections of manpower forecasting are the manpower demand forecasting and the manpower supply forecasting. These techniques are used to regulate the supply and demand balance.

I take it you mean what is the relationship of supply and demand. As the supply goes up the price will come down. As the demand goes up the price will go up. If the supply and demand are in balance the price will stay the same.

three key elements are Forecasting, evaluating supply and Balance Supply and Demand. Forecasting is the prediction of employees the company needs, evaluating supply is analyzing if the supply of potential employees meets the demand and learning to balance the supply and demand of employees..

The general law of demand is that as demand increases, so will prices. This is half of the law of supply and demand. As supply increases, prices fall. So price depends upon a balance between supply and demand. This was originally pointed out by Adam Smith, in his book "The Wealth Of Nations".