The aim of this study is to estimate road freight demand in the UK for the period 1956-2003 and to assess the occurrence of decoupling between economic activity and freight demand as discussed in McKinnon (2006). As models with a deterministic trend cannot accommodate a long-run relationship...

In a seminal paper, Feenstra (1994) developed an instrumental variable estimator which is becoming increasingly popular for estimating demand elasticities. Soderbery (2015) extended this estimator and created a routine which was shown to be more robust to data outliers when the number of time...