At one point, Kodak had 90% of the film market, and 85% of the camera market in the United States. It was almost a monopoly. Ironically, this may have hurt them in the global market, i. e. outside the US. This speaks to what aspect of the diamond of national competitive advantage

Strategy and rivalry

Explanation:

Porter's Diamond Theory of National Competitive Advantage intends to explain to companies how they can gain a competitive advantage in an industry.

Under the Strategy and Rivalry section, it is shown that a company tends to benefit more when it has strong domestic competitions because it can then develop efficient strategies to help it compete in this domestic market and thus survive this competition.

These strategies learnt, can then be implemented on the global stage when the company attempts to become a multinational firm. Kodak as a virtual monopoly in the US market, did not have to worry about competition and so did not develop the strategies that would enable them compete with other companies outside the US when they tried to break into the markets of other countries.

a. money supply  

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answer about 4-5 percent of the labor force is unemployed;