a. UOITIPUIB the value OT ULJP and Investment for the Byzantine economy. b. Compute national income for the Byzantine economy. c. Does national income measure before-tax or after-tax income at Byzantine citizens? d. Disposable income can be computed from national income by subtracting out various taxes, subtracting undistributed corporate prots, and adding transfers. Why must we make these adjustments in order to compute disposable income?(Note: One can considerable the computation of personal income as an intermediate step in this process.) 4. Discuss the things that are included in GDP? What things are not included in GDP? Consumption( durable goods, non durable goods, services) , Investments (purchases of newly produced goods, changes in business inventories, purchase of new residential housing), Government Purchases, and Net Exports are included in the GDP,. Services that are not exchanged for monetary value ( cleaning your own house instead of hiring a made, cooking at home instead of using a cook ect) are not included in the GDP. 5. Is the output of a steel firm included in GDP? Explain. Yes the output of a. steel rm is included in the GDP under the consumption