Public-private wage gaps : is civil-servant human capital sector-specific?

What would be the counterfactual wage of civil servants if they were employed in the private sector? Using the French European Household panel, we present a new approach to the wage differential between the public and the private sectors. We estimate a model, which controls both for selection into employment, and for self-selection into the public sector. We also introduce unobserved heterogeneity in the propensity to be employed in either job sector, and in the sector-specific productivity. Evidence based on the counterfactual distributions suggests a large public-private wage premium for low public wages. This conclusion also holds for women but may be explained by a weaker discrimination in the public sector. Unlike women, most male civil servants would earn more in the private sector.counterfactual distributions, wage differentials, public and private sector, unobserved heterogeneity

Who is confronted to insecure labor market histories? Some evidence based on the French labor market transition

This paper presents some empirical evidence on the French labor market focusing on transitions between stable jobs, temporary work, unemployment and non-participation. The model used is based on a Markov chain mixture which allows to distinguish labor market histories that are confined to contingent work and non-employment from the non-confined ones. This enables us to identify, quantify and characterize (conditional on observable characteristics) the workers who never accede to stable jobs and remain stuck to temporary jobs and non-employment spells. We consider quarterly labor market transitions, observed from 2003 to 2006 in the Labor Force survey (LFS). We find that on the whole, about 5% of the working age population experience confined transition dynamics: they cannot access to stable jobs. Confined workers are less educated and are more likely to live in distressed areas.labor market mobility, labor market transitions, mover-stayer models, Markov chains

An evaluation of the effect of the 2003 reform on the retirement behaviour - The case of public secondary-school teachers

While a new retirement pension reform is currently discussed in France, it is crucial to evaluate previous reforms. Up to now, no evaluation of the 2003 reform is available, particularly for civil servants. This article deals with the impact of this reform on the retirement behaviour of public secondary-school teachers. On the one hand, the reform has had an impact on the retirement behaviour of secondary-school teachers who still work at 60. The probability to retire between 60 and 61 years old for those who have paid their social contributions for 37.5 years at 60 years old drops by 9 points. On the other hand, the reform seems to have changed teachers willingness to get the so-called full-pension rate. When the number of missing quarters of social contributions required to benefit from the full pension rate at 60 years old is low, the reform is not found to induce teachers born after 1944 to postpone their retirement after 61 years old. But a large number of missing quarters has still the same effect before and after the reform.retirement pension reform, public secondary-school teachers, propensity score matching, regression-discontinuity

Protective role of st. John’s wort and its components hyperforin and hypericin against diabetes through inhibition of inflammatory signaling: Evidence from in vitro and in vivo studies

Diabetes mellitus is a very common chronic disease with progressively increasing prevalence. Besides the well-known autoimmune and inflammatory pathogenesis of type 1 diabetes, in many people, metabolic changes and inappropriate lifestyle favor a subtle chronic inflammatory state that contributes to development of insulin resistance and progressive loss of β-cell function and mass, eventually resulting in metabolic syndrome or overt type 2 diabetes. In this paper, we review the anti-inflammatory effects of the extract of Hypericum perforatum L. (St. John’s wort, SJW) and its main active ingredients firstly in representative pathological situations on inflammatory basis and then in pancreatic β cells and in obese or diabetic animal models. The simultaneous and long-lasting inhibition of signal transducer and activator of transcription (STAT)-1, nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and mitogen-activated protein kinases (MAPKs)/c-jun N-terminal kinase (JNK) signaling pathways involved in pro-inflammatory cytokine-induced β-cell dysfunction/death and insulin resistance make SJW particularly suitable for both preventive and therapeutic use in metabolic diseases. Hindrance of inflammatory cytokine signaling is likely dependent on the hyperforin content of SJW extract, but recent data reveal that hypericin can also exert relevant protective effects, mediated by activation of the cyclic adenosine monophosphate (cAMP)/protein kinase cAMP-dependent (PKA)/adenosine monophosphate activated protein kinase (AMPK) pathway, against high-fat-diet-induced metabolic abnormalities. Actually, the mechanisms of action of the two main components of SJW appear complementary, strengthening the efficacy of the plant extract. Careful quantitative analysis of SJW components and suitable dosage, with monitoring of possible drug–drug interaction in a context of remarkable tolerability, are easily achievable pre-requisites for forthcoming clinical applications

Discussions on "Riemann manifold Langevin and Hamiltonian Monte Carlo methods"

This is a collection of discussions of `Riemann manifold Langevin and Hamiltonian Monte Carlo methods" by Girolami and Calderhead, to appear in the Journal of the Royal Statistical Society, Series B.Comment: 6 pages, one figur

What medium-term growth rates after the crisis?

The financial crisis originated in the United States in 2007 and, then, spread in all the economies of the world. After a drop in activity of historic magnitude, first signs of recovery were recorded in 2009. However, our study of previous banking crises that have taken place in OECD countries over the last forty years leads one to expect a very gradual return of growth rates to their pre-crisis values, with long-lasting losses for the level of GDP. According to our estimations, average losses observed during past banking crises occurred through a reduction in capital stocks, an increase in unemployment rates and a drop in participation rates. Conversely, past banking crises seemed to have had little impact on total factor productivity. In France, the 1992-1993 crisis, which shares some common features with the current crisis, had also long-lasting negative impacts on the employment and unemployment rates. Employment-rate losses were fairly similar for men and women. Ten years passed before the overall unemployment rate returned to its pre-crisis level. Based on various post-crisis scenarios, we illustrate the mechanical medium-term impact of the current crisis on public finances, whithout any fiscal adjustment after 2012. Even in the scenario of a complete recovery by 2018 of GDP losses recorded in 2008 and 2009, the impact on the public debt would exceed 20 % of GDP ten years after the crisis as a result of declining revenues and increasing interest payments. The impact would be still higher in less favourable scenarios.financial crisis, medium-term growth

Simulating the impact of pension reforms on labour force participation for the 55+: a comparison of three models

A specific attention is devoted to the 55+ age group when building global labour force projections regularly updated by Insee. This requires taking into account individual heterogeneity, because the impact of pension reforms on behavior is potentially very different across individuals. For instance, increasing to 62 the minimum age of eligibility, as decided in 2010, will be neutral for people who already planned to retire after this age. It will be constraining for other people, but the impact on global labour force will depend upon employment status before retirement: postponing pension claiming for individuals who have already left the labour market does not affect this labour force, at least as long as it does not change labour market behavior before retirement age. Simulating individual transitions to retirement raises however considerable problems, to which models only bring imperfect and uncertain answers. This argues in favor of scenarized projections based on alternative assumptions. We present here results based on three options offered by the Destinie 2 microsimulation model. Depending upon these assumptions, cumulated impacts of past reforms on labour force participation rates for the 60-64 age group range, in the long run, between 10 and 40%, but starting from no-reform trends that are themselves very different from one scenario to the next. On the whole, after reforms, the long run labour force participation rate for the 60-64 group would lie within the 40%-50% bracket. This corresponds to mean ages at pension claiming lying between 64 and 65 years, and to mean ages at exit from the labour force fluctuating between 61 and 63 years, depending upon possible retroactions on career paths before full retirement.pension reform, age at retirement, microsimulation, labour force projection

Direct interation of garcinol and related polyisoprenylated benzophenones of Garcinia cambogia fruits with the transcription factor STAT-1 as a likely mechanism of their inhibitory effect on cytokine signaling pathways.

Garcinol (1), a polyisoprenylated benzophenone occurring in Garcinia species, has been reported to exert anti-inflammatory activity in LPS-stimulated macrophages, through inhibition of NF-κB and/or JAK/STAT-1 activation. In order to provide deeper insight into its effects on the cytokine signaling pathway and to clarify the underlying molecular mechanisms, 1 was isolated from the fruits of Garcinia cambogia along with two other polyisoprenylated benzophenones, guttiferones K (2) and guttiferone M (3), differing from each other in their isoprenyl moieties and their positions on the benzophenone core. The affinities of 1-3 for the STAT-1 protein have been evaluated by surface plasmon resonance and molecular docking studies and resulted in KD values in the micromolar range. Consistent with the observed high affinity toward the STAT-1 protein, garcinol and guttiferones K and M were able to modulate cytokine signaling in different cultured cell lines, mainly by inhibiting STAT-1 nuclear transfer and DNA binding, as assessed by an electrophorectic mobility shift assay

Projecting the Medium-Term: Outcomes and Errors for GDP Growth

The focus of this paper is the evaluation of a very popular method for potential output estimation and medium-term forecasting - the production function approach - in terms of predictive performance. For this purpose, a forecast evaluation for the three to five years ahead predictions of GDP growth for the individual G7 countries is conducted. To carry out the forecast performance check a particular testing framework is derived that allows the computation of robust test statistics given the specific nature of the generated out-of sample forecasts. In addition, medium-term GDP projections from national and international institutions are examined and it is assessed whether these projections convey a reliable view about future economic developments and whether there is scope for improving their predictive content