an:05134232
Zbl 1106.62011
Samaniego, F. J.; Vestrup, E. M.; Bhattacharya, D.
On constrained estimation problems in time-use surveys
EN
Stat. Probab. Lett. 77, No. 2, 204-210 (2007).
00192073
2007
j
62D05 62F15
stylized time-use survey; linear constraints; bivariate normal distribution; maximum likelihood
Summary: In the context of ``stylized'' time-use surveys, constrained estimation problems are common, a simple illustration being the constraint that the hours reported for a mutually exclusive and exhaustive set of activities in a given day should sum up to 24. An example is developed, using mixtures of multivariate normal models, which demonstrates that model-based inference can lead to estimators that can decisively outperform ad hoc strategies such as ``shrinking towards the constraint'' that have been recommended in the literature.