Missing values are a major problem in all econometric applications based on survey data. A standard approach assumes data are missing-at-random and uses imputation methods, or even listwise deletion. This approach is justified if item non-response does not depend on the potentially missing...

Missing values are a major problem in all econometric applications based on survey data. A standard approach assumes data are missing-at-random and uses imputation methods, or even listwise deletion. This approach is justified if item non-response does not depend on the potentially missing...

Do firms sourcing out IT services redirect their resources to innovation activity? We attempt to answer this question by analysing a firm-level data set comprising 1453 firms from the German manufacturing and services sectors. Using different measures of IT outsourcing (ITO), the econometric...