Which of the following is NOT a factor that explains interindustry trade?

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Significant transportation expenses relative to the product's worthVaried agricultural harvest periods across different regionsDistinctive features and variations in products like carsElevated average income levels in countries that exportDifferences in natural resource availability between countries

Explanation

Interindustry trade arises due to factors such as high transportation costs, seasonal differences in agriculture, and product differentiation. However, having a high per capita income in exporting nations does not directly explain interindustry trade.