An index number is a scalar-valued function of price and perhaps quantity data that supports the assessment of the state or trend of an economy. Many researchers over the past 250 years have proposed diverse mathematical forms for index numbers, and discussed criteria for their validity. In this...

The availability of copious amounts of data produced by the increasing datification of our society is nowadays deemed an opportunity to produce timely and convenient statistical information. This paper shows the building of economic sentiment indexes from the texts of the most read economic...

The present paper shows that product-specific regional price dispersion usually causes the Country-Product-Dummy (CPD) method to be biased. In cases where it is not, this index number method is still inefficient and inference is invalid. In view of this, a nonlinear generalization of the CPD...