![income_perishables | The Geography of Transport Systems](https://i0.wp.com/transportgeography.org/wp-content/uploads/income_perishables.png?resize=850%2C514&ssl=1)
Source: adapted from Lufthansa Consulting, 2009.
Rising incomes per capita are associated with a diversification of the diet, including a higher consumption level of fruits, vegetables, and meats. Higher-income economies thus have a greater share of their food imports accounted by perishable products. A low-income economy may have its food imports dominantly related to grains, while a high-income economy may import a wide variety of perishable products to satisfy a complex demand, including a large share of the income spent on eating outside the residence. Thus, the higher the income the more reliant an economy is on cold chain logistics.