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6
A Linear Panel Model with Heterogeneous Coefficients and Va..
NBER working paper series, no. w29976
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9
Real-time Surveillance of Repression: Theory and Implementa..
NBER working paper series, no. w30167
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12
Visualization, Identification, and Estimation in the Linear..
NBER working paper series, no. w29170
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13
Labor Market Returns and the Evolution of Cognitive Skills:..
NBER working paper series, no. w29135