The cumulative effect of expansion by all firms is therefore to change the conditions faced by each firm in the factor market.

因此，所有厂商扩张的效应累积，改变了每家厂商面对的要素市场状况。

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There are often a large number indefinite factor that stimulate some variation in market, lead to market environment that aggravate risk and disorder, result in the change on consumption demand.

市场中往往有着大量的不确定性因素，这些因素共同激发了不小的变化，产生不断加剧风险和混乱的市场环境，导致消费需求的变异。

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