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8 May 2009: regions at the 50 and 30 ends of an mRNAendo-siRNA endogenous siRNA a short RNA (other than an miRNA) that is derived from the host genome,. ... InArabidopsis, more than half the endogenous siRNAsare derived from heterochromatic sequence, and a thirdof

3 Dec 2009: control function in the first stage, essentially treating apprenticeship as a simple endogenous. ... the endogenous binary variable with instruments z (Wooldridge, 2002). This is also called the.

3 Dec 2009: within pupil at one point in time. While the potential for endogenous selection into the.

3 Dec 2009: occupation. 5. Another way of expressing the problem of endogenous sample selection is as ‘endogeneity’. ... survey. Given the resulting large (and potentially endogenous) gaps in these data, and given that parental education is a dubious instrument

3 Dec 2009: when average student achievement is the endogenous variable in the teacher pay regression.

3 Dec 2009: modeled using a multinomial logit equation. Another way of expressing the problem of endogenous sample selection is as. ... selectivity corrected equations to OLS. The problem of endogenous sample selection is akin to the problem of endogeneity.

3 Dec 2009: endogenous selection into different school types on the basis of un-.

3 Dec 2009: 6 While education is endogenous in an earnings function, Card (2001) finds that estimates of the coefficient onschooling made using an instrumental variable strategy are not far different from (and, indeed,

3 Dec 2009: Table 5 about here]. Labor market status is clearly endogenous to health status: those more prone to sickness are arguably less likely.

3 Dec 2009: within pupil at one point in time. While the potential for endogenous selection into the.