What is India's position in the World Happiness Report

 According to the Principle of Equal Marginal Sacrifice proposed by Hugh Dalton, an optimal income tax structure is one where:

If input prices adjusted very rapidly to output prices as classical economists argue the Phillips cure would be

In the context of the Classical model, which of the following would cause a shift in the long-run aggregate supply curve (LRAS)?

At price of Rs.5 quantity demanded is 10 units and at price of Rs.6, demand is 8 units. Calculate the market demand when price is Rs.4