In a randomized control trial, the precision of an average treatment effect estimator can be improved either by collecting data on additional individuals, or by collecting additional covariates that predict the outcome variable. We propose the use of pre-experimental data such as a census, or a...

Cover -- Zum Inhalt/Zu den Autoren -- Titel -- Vorwort -- Inhaltsverzeichnis -- 1. Ablauf einer Studie -- 1.1 Ziele der Marketing-Forschung -- 1.2 Formulierung der Fragestellung -- 1.2.1 Studienart -- 1.2.2 Aufstellen von Hypothesen und Forschungsfragen -- 1.3 Konzeption der Erhebung -- 1.3.1...

In a randomized control trial, the precision of an average treatment effect estimator and the power of the corresponding t-test can be improved either by collecting data on additional individuals, or by collecting additional covariates that predict the outcome variable. To design the...

Measuring construction activity in the UK / Noble Francis -- Construction output as gross fixed capital formation / Gerard de Valence & Jim Meikle -- Benchmarking international construction costs / Craig Langston.