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Even though much has been learned about the new pathogen SARS-CoV-2 since the beginning of the COVID-19 pandemic, a lot of uncertainty remains. In this paper we argue that what is important to know under uncertainty is whether harm accelerates and whether health policies achieve deceleration of harm. For this, we need to see cases in relation to diagnostic effort and not to look at indicators based on cases only, such as a number of widely used epidemiological indicators, including the reproduction number, do. To do so overlooks a crucial dimension, namely the fact that the best we can know about cases will depend on some welldefined strategy of diagnostic effort, such as testing in the case of COVID-19. We will present a newly developed indicator to observe harm, the acceleration index, which is essentially an elasticity of cases in relation to tests. We will discuss what efficiency of testing means and propose that the corresponding health policy goal should be to find ever fewer cases with an ever-greater diagnostic effort. Easy and low-threshold testing will also be a means to give back people’s sovereignty to lead their life in an “open” as opposed to “locked-down” society.

On both sides of the Atlantic, in Anglo-Saxon countries, the issue of excess mortality due to Covid-19 among members of minorities has emerged as a central social justice issue. Outside the Anglo-Saxon countries, where race and ethnicity are generally recorded, it is difficult to address this issue. However, in France, data for the period up to the end of confinement, mentioning country of birth and place of death, from "état-civil" files, allow comparisons to be made on the determinants of the severity of Covid-19 integrating ethnicity. Regression analyses based on the difference in death counts between the spring of 2020 and the same period of previous years, show that the interweaving of health status, household size and ethnicity accurately reflects the disparities between departmental mortality rates due to Covid-19. People born in Black Africa clearly appear to be in a worse position than those born in the Maghreb, in Asian and European countries, not to mention the natives, in terms of risk of death.

Little is known about the general equilibrium impact COVID-19 induces on different gender groups. This paper addresses the problem of relatively few general equilibrium studies focusing on gender impacts of COVID-19. The analysis uses a gendered Computable General Equilibrium model linked to a microsimulation model that analyses a mild and severe scenario of the pandemic on economic and distributional outcomes for females. Irrespective of scenario, findings show that because women employment tend to have unskilled labour which is more concentrated in sectors that are hurt the most by COVID-19 response measures, they suffer disproportionately more from higher unemployment than their male counterparts. The poverty outcomes show worsened vulnerability for female-headed households given that, even prior to the pandemic, poverty was already higher amongst women. These simulated results are consistent with recently observed impacts and address research gaps important for well-designed public policies to reverse these trends.On connait peu les impacts d’équilibre général induits par la Covid-19 sur les groupes de genre différents. Cette étude adresse le problème de la pénurie d’études en équilibre général s’intéressant aux impacts de la COVID-19 sur le genre. L’analyse te combine un modèle d’équilibre général calculable sexo-spécifique avec un modèle de micro-simulation et évalue deux scenarios de la pandémie, l’un modéré et l’autre sévère, et leurs effets sur les résultats économiques et distributionnels des femmes. Quel que soit le scenario, les résultats démontrent que les femmes souffrent du chômage d’une manière disproportionée comparé aux hommes, puisque le travail des femmes tend à être du travail non qualifié, concentré dans les secteurs qui sont les plus frappés par les mesures de réponse à la COVID-19. En termes de pauvreté, les foyers dirigés par des femmes sont plus vulnérables, étant donné que même avant la pandémie, la pauvreté était déjà plus élevée chez les femmes. Les résultats simulés par cette étude concordent avec les impacts récemment observés, et abordent les lacunes de recherche nécessaires pour modéliser des politiques publiques bien conçues afin de renverser ces tendances.

Uprising in China, the global COVID-19 epidemic soon started to spread out in Europe. As no medical treatment was available, it became urgent to design optimal non-pharmaceutical policies. With the help of a SIR model, we contrast two policies, one based on herd immunity (adopted by Sweden and the Netherlands), the other based on ICU capacity shortage. Both policies led to the danger of a second wave. Policy efficiency corresponds to the absence or limitation of a second wave. The aim of the paper is to measure the efficiency of these policies using statistical models and data. As a measure of efficiency, we propose the ratio of the size of two observed waves using a double sigmoid model coming from the biological growth literature. The Oxford data set provides a policy severity index together with observed number of cases and deaths. This severity index is used to illustrate the key features of national policies for ten European countries and to help for statistical inference. We estimate basic reproduction numbers, identify key moments of the epidemic and provide an instrument for comparing the two reported waves between January and October 2020. We reached the following conclusions. With a soft but long lasting policy, Sweden managed to master the first wave for cases thanks to a low R 0 , but at the cost of a large number of deaths compared to other Nordic countries and Denmark is taken as an example. We predict the failure of herd immunity policy for the Netherlands. We could not identify a clear sanitary policy for large European countries. What we observed was a lack of control for observed cases, but not for deaths.

We see spikes in unemployment rates and turbulence in the securities markets during the COVID-19 pandemic. Governments are responding with aggressive monetary expansions and large-scale economic relief plans. We discuss the implications on banks and the economy of prudential regulatory intervention to soften the treatment of non-performing loans and ease bank capital buffers. We apply these easing measures on a sample of Globally Systemically Important Banks (G-SIBs) and show that these banks can play a constructive role in sustaining economic growth during the COVID-19 pandemic. However, softening the treatment of non-performing loans along with easing capital buffers should not undermine banks' solvency in the recovery period. Banks should maintain usable buffer in the medium-term horizon to absorb future losses, as the effect of COVID-19 on the economy might take time to fully materialise.

On 12 March 2020, the sharp fell of U.S. crude oil price to 30 dollars was explained by the outspreads of coronavirus pandemic and the OPEC's inability to reach a production quota agreement. We employ the structural VAR model with time-varying coefficients and stochastic volatility (TVP-SVAR model) developed by Primiceri (2005) to asses the impact of COVID-19 shocks on the energy futures markets, particularly on crude oil and natural gas S&P GS Indexes. The findings confirm that energy commodities S&P GS Indexes respond to COVID-19 shock that varying over time due to fundamentals factors as well as behavioral and psychological factors.

Abstract This paper uses a difference-in-differences (DID) framework to estimate the impact of non-pharmaceutical interventions (NPIs) used to fight the 1918 influenza pandemic and control the resultant mortality in 43 US cities. The results suggest that NPIs such as school closures and social distancing, as implemented in 1918, and when applied relatively intensively, might have reduced individual and herd immunity reducing the life expectancy of people with co morbidity, thereby leading to a significantly higher number of deaths in subsequent years. It would be difficult to draw any inference regarding the predicted impact of NPIs as implemented during the Covid-19 crisis as influenza and Covid-19 are two entirely different viruses and nowadays’ pharmaceutical technologies can limit these medium-term impacts.

1st lines: In the upcoming European Council on July 17 and 18, EU member states will fight for a compromise on the European Commission’s main project to tackle the economic fallout of the Covid-19 crisis across Europe: a new 7-year EU budget propped up with a temporary Recovery Instrument (Next Generation EU) amounting to EUR 750 bn of jointly issued debt and to be passed on to EU countries as grants and loans. It is one of the most ambitious in a long line of proposals for European debt mutualisation. While joint borrowing can carry a lot of advantages, debt mutualisation has always been very controversial. Confrontations between those countries supposedly benefiting and losing from mutualising debt have repeatedly centered on the legitimate balance of solidarity and responsibility that such debt implies. Democratic legitimacy in solidarity-responsibility arrangements can be achieved when they can deliver in terms of output legitimacy (being effective in economic terms), input legitimacy (ensuring sufficient room for domestic politics in deciding national policy trajectories) and throughput legitimacy (being run in a transparent and accountable manner).

Les perturbations économiques dues à la pandémie mondiale de Covid-19 ont déclenché d'innombrables litiges entre les entreprises sur la manière de faire respecter leurs relations contractuelles. Dans ce contexte, la survie des entreprises devient un réel problème lorsque les partenaires dans les relations verticales ou les chaînes de valeur mondiales se comportent de manière opportuniste. Ce comportement d'exploitation devrait-il être examiné comme des pratiques anticoncurrentielles par les autorités de la concurrence, en toute séparation des tribunaux ordinaires?Dans cet article, nous soutenons que la règle bien connue de l'abus de l'état de dépendance économique (ASED) pourrait dissuader l'opportunisme qui survient également lors de la pandémie de Covid-19 ou de toute autre crise mondiale. En fait, rejetés par la Chicago School de l'antitrust, non reconnus par la doctrine du contrat, à l'exception de sa facette de conduite négligente, les abus d'exploitation pourraient réintégrer la liste des pratiques néfastes pour les consommateurs, bien qu'après une analyse complexe. L’article examine en outre dans quelle mesure l’ASED, dissuadant un large éventail de comportements d’exploitation, comble le vide laissé par les dispositions réprimant les pratiques déloyales, même s’il confère une latitude considérable au pouvoir discrétionnaire des juges spécialisés. L'article soutien que la mise en œuvre de l'ASED assurerait une plus grande dissuasion de l'opportunisme légal dans la mesure où elle rétrécit les fissures du corpus juridique entre les abus d'exclusion et d'exploitation. Economic disruptions due to the global Covid-19 pandemic have unleashed uncountable litigation between firms on how to enforce their contractual relationships. In this context, the survival of undertakings becomes a real issue when partners in vertical relationships or global value chains behave opportunistically. Should this exploitative conduct be scrutinized as anti-competitive practices by the competition authorities in full separation from ordinary courts? In this paper, we argue that the well-known rule of abuse of the state of economic dependence (ASED) could deter opportunism that arises likewise during the Covid-19 pandemic or any other global crises. Actually, rejected by the Chicago School of Antitrust, and not acknowledged by the contract doctrine except its facet of negligent conduct, exploitative abuses could reintegrate the list of harmful practices to the consumers albeit after an intricate analysis. The article further investigates the extent to which the ASED, deterring a wide spectrum of exploitative conduct, fills the gap left by the provisions punishing unfair practices albeit it confers a considerable room for the specialist judges' discretion. Such ASED implementation would ensure more deterrence of the lawful opportunism inasmuch it narrows cracks of the legal corpus between exclusionary and exploitative abuses.