这种土地占有制度丧失了增加产量和提高劳动生产率的大量的经济动力刺激物。

Such land tenure arrangements take away much of the economic incentive for output expansion and productivity improvement.

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结果表明，对于农民制度选择结果影响程度由强到弱的因素是收入水平、土地占有量、年龄和文化程度，每种因素对于结果影响程度也被定量的计算出来。

The quantitative influential degrees of factors have gained, the factors order of influential ability from strong to weak is that income level, land occupation level, age and educated level.

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