Murthy and Ukpolo (1994) recently estimated a model of aggregate health care expenditure for the United States using cointegration techniques. Their choice of dependent variable, however, introduced the possibility of simultaneity bias in the error-correction model they presented. Their results...

In the absence of any theoretical guidance, a solution to the question of what is the appropriate functional form for an import demand model can only be found empirically. Examines this question in the context of UK motor vehicle imports by applying a range of tests of functional form to two,...