This article explicitly constructs and classifies all arrovian voting systems on three or more alternatives. If we demand orderings to be complete, we have, of course, Arrow's classical dictator theorem, and a closer look reveals the classification of all such voting systems as dictatorial...

Econometrics demands that economists be familiar both with mathematical statistics and with different branches of higher mathematics. Economists – Lombardini argues in his essay – believe this scientific discipline has some utility, insofar as it paves the way to new perspectives and new...

We investigate a switch from fixed-weighted national accounts data to chain-type data in the quarterly macroeconometric model Mona. As in other countries the idea behind this change in the national accounts data has been to reduce the substitution bias, which has grown with the amount of...

Although it is not possible, in general, to give a macro description of a micro model over the entire state space of the micro model, it is possible to aggregate exactly over a subspace. The set of micro states where aggregation is possible forms the aggregation set. The paper considers the...

Studies by the author showed that strong cross-sectional correlations between industry-level values and prices are spurious. Díaz and Osuna (2005-6) challenged this finding, arguing that the correlation results are fatally indeterminate, and that the author's procedure for eliminating spurious...

The literature on price-value relations has frequently used correlation measures in testing the theory of labor value--that is, values are good proxies to prices or, alternatively, they explain, in some sense, prices. However, several authors have detected important problems that affect those...

Lawrence R. Klein pioneered the work on aggregation, in particular in production functions, in the 1940s. He paved the way for researchers to establish the conditions under which a series of micro production functions can be aggregated so as to yield an aggregate production function. This work...