根据机构精确度理论和运动可靠性的概念，给出了典型平面机构的运动误差及运动可靠性的分析方法。
According to the theory of mechanism precision and the idea of motion reliability, the article put forward a method of analysis to motion error and reliability for typical plane mechanism.
研究发现，预测机构数量的增加、盈余可预测性以及信息披露质量的提高，将伴随着高的盈余预测精确度，而盈余波动程度越大、公司规模越大，预测的精确度则越低。
The conclusion is that precision of analysts earnings forecast is enhanced by increasing in the numbers of analysts and by improving on earnings predictability and information disclosure.
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