英语翻译A dyadic relationship is undirectional if Y(ji) = Y(ij) for all i; j.In this case,symmetry requires thatregressors satisfy DX(ij) = DX(ji).One easy way of satisfying this requirement is to specify the regressionas:where Z(i) and Z(j) are

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英语翻译A dyadic relationship is undirectional if Y(ji) = Y(ij) for all i; j.In this case,symmetry requires thatregressors satisfy DX(ij) = DX(ji).One easy way of satisfying this requirement is to specify the regressionas:where Z(i) and Z(j) are
英语翻译
A dyadic relationship is undirectional if Y(ji) = Y(ij) for all i; j.In this case,symmetry requires that
regressors satisfy DX(ij) = DX(ji).One easy way of satisfying this requirement is to specify the regression
as:
where Z(i) and Z(j) are characteristics of individual i and j thought to infuence the likelihood of a link Y(ij)
between them.Coeffcient D(1) measures the effect of differences in attributes on Y(ij) while D(2) captures the
effect of the combined level of Z(i) and Z(j) on Y(ij) .If a dyadic relationship is directional,Yij needs not equal
Yji.In this case,the symmetry requirement can be satis…ed by specifying the model as:
For D2 to be identified,individuals must not have the same number of links----see Marcel Fafchamps and
Flore Gubert (2006) for details.

英语翻译A dyadic relationship is undirectional if Y(ji) = Y(ij) for all i; j.In this case,symmetry requires thatregressors satisfy DX(ij) = DX(ji).One easy way of satisfying this requirement is to specify the regressionas:where Z(i) and Z(j) are
一个二价关系是没有方向性的,如果y(ij)=y(ji)对所有i,j都成立,对称性则要求其回归数满足DX(ij)=DX(ji).一个比较简单的,能够满足此要求的方法是指定其回归为个体i和j的首数,用来控制ij在Y（ij）中的关系.系数D(1)衡量Y(ij)属性方面的不同效果,同时D(2)捕捉Z(i)和Z(j)在Y(ij)上的总效果级别.
如果一个二价关系具有方向性,yij则不需要等于yji.在这种情况下,对称性可以以指定如下模型的方式来满足：
为了确认D2,个体必须不带有相同数字的联系.了解更多请看Marcel Fafchamps and Flore Gubert (2006)
P.S.:
individual这个词我一直不知道是什么意思估计是某种专业名词,翻译成了“个体”,你可以参考一下其他书目中对这个词的解释.如果楼主能提供这段东西所涉及的具体科目也许翻译起来就比较容易了,总之我的数学修为还没达到这个级别.

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一个二的关系是undirectional，如果Y (ji) = Y (ij)所有的i; j.在这种情况下，对称要求那
regressors满足DX (ij) = DX (ji)。满足这个要求一个容易的方法将指定退化
as ：
where Z (i)和Z (j)是个体的特征我和j被认为对infuence链接Y (ij) 的可能between他们。 Coeffcient D (1)测量区别的作用在属性上的对Y (ij)，当D时(2)夺取Z的联合的水平的effect (i)和Z (j)在Y (ij)。如果一个二的关系是定向的， Yij需要不相等的
Yji. 在这种情况下，对称要求可以是satis…ed通过指定模型如下：
D2将被辨认的For，个体不能有链接的同一数量----看见烫发Fafchamps和
Flore Gubert (2006)关于细节

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