Answer and Explanation:
a. Since an american buys a sony tv so it would decrease the net exports as we know that net exports would be determined by deducting the imports from exports. Here the sony is an import so if an import is increase the net export would decrease
b. As the american purchase a sony stock share so it would increase the net capital outlow as the financial asset and stock would be shown in the capital account. as the money is given to sony so it would increase the net capital outflow
c. Sine the Japanese car would build a factory in Ohio so it decrease the net capital outflow as it is an imported good
d. As German citizen purchase an apple computer so it would rise the net exports as export would increase