Some parameters chain may deviate from the expectancy value or average in the supply chain, such as demand, price, cost, and so on, and then there is a variance risk.
供应链中的某些参数，如需求、价格、成本等可能偏离供应链的预期值或者平均值，这就产生了供应链方差风险。
Expectancy-Value Theory and Attribution Theory also form the theoretical basis of the motivational variables which can be used in interpreting the complicated motivational activities of individuals.
期望-价值理论，以及归因理论都为揭示个体的复杂动机行为提供了理论支持。
Expectancy-Value Theory and Attribution Theory also form the theoretical basis of the motivational variables which can be used in interpreting the complicated motivational activities of individuals.
期望-价值理论，以及归因理论都为揭示个体的复杂动机行为提供了理论支持。
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