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Statistics seminar 2018: A Comparison Study on Criteria to Select the Most Adequate Weighting Matrix

18/05/2018 dalle 14:30 alle 16:30

Dove Dipartimento di Scienze Statistiche - via delle Belle Arti 41 Aula Seminari

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Jesus Mur
Università di Saragozza

The practice of spatial econometrics revolves around a weighting matrix, which is often supplied by the user on previous knowledge. This is the so called W issue. Probably, the aprioristic approach is not the best solution although, nowadays, there few alternatives for the user. Our contribution focuses on the problem of selecting a W matrix from among a finite set of matrices, all of them deemed appropriate for the case. We develop a new and simple method based on the Entropy corresponding to the distribution of probability estimated for the data. Other alternatives, which are common in current applied work, are also reviewed. The paper includes a large Monte Carlo resolved in order to calibrate the effectiveness of our approach compared to the others. Two well-known case study are also included.

Roberto Patuelli, Dipartimento di Scienze Economiche