Nationalism is the identification with one's own nation and to the exclusion or detriment of the interests of other nations. Hence the effect is negative.
<h3>Effect of nationalism on networks, production and distribution</h3>
Nationalism affect networks, production and distribution in such a way that a significant proportion of consumers will not be willing to buy imported produce from countries that are in conflict with theirs. Hence, those whose ethnocentric and economic-centric relationship are strong would exhibit this trait.
The implication is that networking of good to to such country will be distorted, low production may set in, and by extension, distribution may need to follow other channels.
Therefore, the effects will be enormous and very negative to the producing countries.
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Your answer is going to be "All of the Above".
Clara Barton was regarded as the nurse who would later form the American Red Cross. As a nurse her role was more prominent however, she also rode onto the battlefield to and supplied food and water to troops.