The Malmquist productivity index is one of the most popular indexes used for measuring productivity growth. Several explanatory factors constitute this index. Among them, the technical change component is defined as the distances between the isoquants measured along a single direction....

Statistical offices try to match item models when measuring inflation between two periods. However, for product areas with a high turnover of differentiated models, the use of hedonic indexes is more appropriate since they include unmatched new and old models. There are two main competing...