Hysteresis is one of the main concepts used in Layard, Nickell and Jackman's book, Unemployment: Macroeconomic Performance and the Labour Market. Attempts to clarify the concept of hysteresis, from its formal representation to its empirical applications. Emphasizes the idea that hysteresis...

MIMOSA, modèle macroéconomique de l'économie mondiale, construit en commun par le CEPII et l'OFCE est maintenant opérationnel. Le présent article en présente les principales caractéristiques ainsi que quelques propriétés variantielles. Les économies des six plus importants pays...

[eng] The analysis of National Income distribution is often restricted to that of the shares of wages and profits in value added, the main determinants of which are changes in productivity and real wages. This is because a study first focused on G.D.P, thus including all indirect taxes, then on...

The hysteresis terminology has mainly been used in two fields of economics, unemplyment and international trade, with a different meaning however, involving either linear autoregressive macro behaviour or non- linear heterogenous mico behaviour. There may nonetheless be observational equivalence...

The author discusses the effect of the mimetic contagion on the dynamics of stock prices. Each investor bids and/or asks prices such that adjusts to his present value, calculated from his incomplete information set, and to the average price of others buyers and sellers (mimetic contagion). An...

We present and discuss the padé z-transform method for the identification of a transfer function model; an application is given with the geometric lag model, the ratios of which can be real and/or complex numbers. The method consists first in considering the z-transform of the transfer function...