The diagram shows the demand and supply curves for bread in a developed economy. Bread is a substitute for pasta and rice.
What would cause the demand curve for bread to shift from ${D_1}$ to ${D_2}$ in a developed economy?
a rise in the price of pasta and rice
2 )
a decrease in the real income of consumers
3 )
a recession and rising unemployment
4 )
a subsidy given to producers of pasta and rice
