想請教一個行銷問題 - 企管

"The great majority of business sales are made directly from producer to
business user." Explain why this occurs, first in terms of the nature of
the market, and then in terms of the product.
想請教一下"nature of the market"指的是什麼?
不太懂在所問的情況中該如何明確的就market和product層面作出不同的解釋
不知道能不能麻煩行銷高手解答
謝謝^^感激不盡

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