1. The term ' invisible hand ' is used by the famous economist
Adam smith in his book ' An inquiry into the nature and causes of
wealth of nation' . The term is a part of the laissez-fair policy
that is the economy always would be in equilibrium without any
government intervention. According to Adam Smith every people works
in favour of their self interest so there would be a competition
among each other and this will lead to an efficient outcome with
the invisible hand. For eg. if there is a shortage in the economy
and it would put upward pressure on the price and the price will
rise until the shortage is eliminated.
Ans: b). How the decisions of the firms and
households lead to desirable market outcomes.
2. An simultaneous increase in the demand and supply will
increase the quantity demanded and the changes in prices will be
determined by the magnitude of these changes. The increase in
demand is the change in quantity demanded at every price level and
this indicates the consumer consider the tablets is more important
than before so the value of the tablets for the consumer has
increased. The important determinant of the supply of the tablets
is input costs , a decrease in the inputs costs give the firms an
incentive to produce more so there would be an increase in the
supply. Similarly the firm would cut down the production if there
is a rise in the input costs and this is a decrease in the
supply.
Ans: b. The value of the tablets to consumer
has increased, and the cost of producing tablets has decreased.