Helloo Tutors answers the following questions precisely.

(i) In each of the following cases, calculate the value of the multiplier for an economy that has no government and no international trade: (a) the marginal propensity to save is 0.4 (b) the marginal propensity to consume is 0.75. [2] (ii) Explain how the introduction of income tax that is proportional to income will affect the value of the multiplier. [2] [Total 4]The following table is extracted from the 1970-72 investigation into the mortality of occupational groups in England and Wales: Standard Mortality Ratio (ages 15-64, both sexes) Electrical engineers (so described) 317 Publicans, innkeepers 155 Physiotherapists 55 Electrical engineers (requiring training of university standard) 42 Suggest possible explanations for each of the statistics above. [8] (ii) What factors, other than occupation, will influence the mortality differentials? [6] [Total 14]