Searching by questionaire for the meaning of income inequality

Amien and Cowell (1992) have recently performed an experimental test by questionnaire to investigate whether a sample of individuals corroborate the general consensus found in the literature about a number of axioms on the meaning of 'inequality'. They obtained some mixed results. In this article we report on a replica of the experiment with some novelties: we introudce the role of political attitudes toward income redistribution to clarify the interpretation of some results; the questionnaire is enlarged in an attempt to give more room to notions of inequality imtermediate between the relative and absolute polar cases; and we provide a systematic treatment of the degree of consistency exhibited by the respondents

Monetary Policy in the presence of Informal Labour Markets

In this paper we analyse the effects of informal labour markets on the dynamics of inflation and on the transmission of aggregate demand and supply shocks. In doing so, we incorporate the informal sector in a modified New Keynesian model with labour market frictions as in the Diamond-Mortensen-Pissarides model. Our main results show that the informal economy generates a "buffer" effect that diminishes the pressure of demand shocks on aggregate wages and inflation. Finding that is consistent with the empirical literature on the e¤ects of informal labour markets in business cycle fluctuations. This result implies that in economies with large informal labour markets the interest rate channel of monetary policy is relatively weaker. Furthermore, the model produces cyclical flows from informal to formal employment consistent with the data.Monetary Policy, New Keynesian Model, Informal Economy, Labour Market Frictions.

Inflation Premium and Oil Price Volatility

In this paper we establish a link between the volatility of oil price shocks and a positive expected value of inflation in equilibrium (inflation premium). In doing so, we implement the perturbation method to solve up to second order a benchmark New Keynesian model with oil price shocks. In contrast with log linear approximations, the second order solution relaxes certainty equivalence providing a link between the volatility of shocks and inflation premium. First, we obtain analytical results for the determinants of the level of inflation premium. Thus, we find that the degree of convexity of both the marginal cost and the phillips curve is a key element in accounting for the existence of a positive inflation premium. We further show that the level of inflation premium might be potentially large even when a central bank implements an active monetary policy. Second, we evaluate numerically the second order solution of the model to explain the episode of high and persistent inflation observed in the US during the 70's. We find, in contrast with Clarida, Gali and Gertler (QJE, 2000), that even when there is no difference in the monetary policy rules between the pre-Volcker and post-Volcker periods, oil price shocks can generate high inflation levels during the 70's through a positive high level of inflation premium. As by product, our analysis shows that oil price shocks along with a distorted steady state can generate a time-varying endogenous trade-off between inflation and deviations of output from its efficient level. The previous trade-off, once uncertainty is taking into account, implies that a positive level of inflation premium is an optimal response to oil price shocksPhillips Curve, Second Order Solution, Oil Price Shocks, Endogenous Trade-off

Inflation Premium and Oil Price Volatility

In this paper we establish a link between the volatility of oil price shocks and a positive expected value of inflation in equilibrium (inflation premium). In doing so, we implement the perturbation method to solve up to second order a benchmark New Keynesian model with oil price shocks. In contrast with log linear approximations, the second order solution relaxes certainty equivalence providing a link between the volatility of shocks and inflation premium. First, we obtain analytical results for the determinants of the level of inflation premium. Thus, we find that the degree of convexity of both the marginal cost and the Phillips curve is a key element in accounting for the existence of a positive inflation premium. We further show that the level of inflation premium might be potentially large even when a central bank implements an active monetary policy. Second, we evaluate numerically the second order solution of the model to explain the episode of high and persistent inflation observed in the US during the 70’s. We find, in contrast with Clarida, Gali and Gertler (QJE, 2000), that even when there is no difference in the monetary policy rules between the pre-Volcker and post-Volcker periods, oil price shocks can generate high inflation levels during the 70’s through a positive high level of inflation premium. As by product, our analysis shows that oil price shocks along with a distorted steady state can generate a time-varying endogenous trade-off between inflation and deviations of output from its efficient level. The previous trade-off, once uncertainty is taking into account, implies that a positive level of inflation premium is an optimal response to oil price shocks.