130,702 research outputs found
Note bibliografiche: Stirati A. (2020), Lavoro e salari. Un punto di vista alternativo sulla crisi, Roma: Ed. L’asino d’oro
No full textL’ultimo libro di Antonella Stirati (Lavoro e salari. Un punto di vista alternativo sulla crisi. Ed. L’asino d’oro, 2020) presenta un’analisi non convenzionale della situazione economica italiana degli ultimi decenni, alla luce della carenza di domanda aggregata e della deregolamentazione del mercato del lavoro. Inoltre, esso fornisce anche un’ introduzione alle differenze teoriche che intercorrono tra il paradigma post-keynesiano e quello di derivazione neoclassico-marginalista.Antonella Stirati's recently released book (Lavoro e salari. Un punto di vista alternativo sulla crisi. Ed. L’asino d’oro, 2020) presents an alternative analysis of the main economic facts that have characterized the Italian economy over the past decade. The analysis is carried out in light of the weakness of the aggregate demand and the labour market deregulation. The book provides a useful introduction which explores the theoretical debate between post-Keneysians and marginalist economists
A Limit Theorem for Equilibria under Ambiguous Beliefs Correspondences
No full textPrevious literature shows that, in many different models, limits of equilibria of perturbed games are equilibria of the unperturbed game when the sequence of perturbed games converges to the unperturbed one in an appropriate sense. The question whether such limit property extends to the equilibrium notions in ambiguous games is not yet clear as it seems; in fact, previous literature shows that the extension fails in simple examples. The contribution in this paper is to show that the limit property holds for equilibria under ambiguous beliefs correspondences (presented by the authors in a previous paper). Key for our result is the sequential convergence assumption imposed on the sequence of beliefs correspondences. Counterexamples show why this assumption cannot be removed.Ambiguous games, beliefs correspondences, limit equilibria
La posizione dei lavoratori nella contrattazione salariale
No full textLa forza relativa dei lavoratori nella contrattazione salariale può essere
influenzata da un elevato numero di fattori, il cui numero e la cui intensità
sono soggetti a modificazioni nel tempo. L’evoluzione di tali fattori, pur non
agendo in maniera deterministica, può aiutare a spiegare l’evoluzione dei salari
monetari e dei salari reali, nonché di altri aspetti dei rapporti di lavoro che,
considerati nel loro insieme, costituiscono le condizioni di lavoro. Nell’analizzare
questi aspetti, occorre sempre tener ben presente che ciò che conta è il
modo in cui le diverse variabili da considerare, le diverse caratteristiche del
mercato del lavoro, dell’economia e della società, interagiscono tra loro
Rapporto Astril 2022. Mercato del lavoro, contrattazione e salari in Italia: 1990-2021
No full textQuesto rapporto inquadra le recenti tendenze del mercato del lavoro in
Italia in una prospettiva di più lungo periodo, evidenziando l’effetto che
il quadro macroeconomico degli ultimi decenni e fattori di natura istituzionale hanno avuto sulla contrattazione salariale e sul tenore di vita
della popolazione. I contributi nel volume ricostruiscono l’evoluzione in
Italia della disoccupazione e sottoccupazione di lavoro, i cambiamenti
nella forza contrattuale dei lavoratori, la dinamica dei salari reali e della
quota dei salari nel reddito nazionale. Vi si analizzano poi il fenomeno
dei lavoratori poveri, del lavoro in somministrazione e i più recenti cambiamenti legislativi in materia di lavoro e welfare. L’analisi è svolta sia in
aggregato che per macroregioni, con anche una comparazione con gli
altri principali paesi europei
Cancer Immunotherapy: The Dawn of Antibody Cocktails
No full textSince the approval of the first monoclonal antibody (mAb), rituximab, for hematological malignancies, almost 30 additional mAbs have been approved in oncology. Despite remarkable advances, relatively weak responses and resistance to antibody monotherapy remain major open issue. Overcoming resistance might require combinations of drugs blocking both the major target and the emerging secondary target. We review clinically approved combinations of antibodies and either cytotoxic regimens (chemotherapy and irradiation) or kinase inhibitors. Thereafter, we focus on the most promising and currently very active arena that combines mAbs inhibiting immune checkpoints or growth factor receptors. Clinically approved and experimental oligoclonal mixtures of mAbs targeting different antigens (hetero-combinations) or different epitopes of the same antigen (homo-combinations) are described. Effective oligoclonal mixtures of antibodies that mimic the polyclonal immune response will likely become a mainstay of cancer therapy
Inflation and the NAIRU: assessing the role of long-term unemployment as a cause of hysteresis
No full textHysteresis is receiving renewed interest and empirical support but the mechanisms behind it need better understanding. As a novel contribution to such understanding we empirically assess the interpretation according to which long-term unemployment causes hysteresis by increasing the NAIRU. We analyse a panel of 25 OECD countries over a long time span along two lines of enquiry. First, we verify whether long-term unemployment is ‘reversible’. Second, we focus on episodes of strong long-term unemployment reduction to check for inflationary effects in the subsequent years. We find a strong association between total and long-term unemployment rates even in upswings, testifying to macroeconomic reversibility. We do not find accelerating or persistently higher inflation after episodes of strong decline in long-term unemployment, even when the economy is estimated to be above its potential. Our results cast doubt on this explanation of hysteresis and challenge the notion of NAIRU as an inflationary barrier
Quantifying fiscal multipliers in Italy: A Panel SVAR analysis using regional data
No full textApplying panel SVAR modelling to 1995–2017 regional data, we estimate fiscal multipliers in Italy at national and sub-national level and find that expansionary fiscal policies produce positive and persistent effects on GDP. Fiscal multipliers remain larger than 1 even 10 years after a discretionary fiscal policy is implemented. Government investment stimulates output more than government consumption. Moreover, fiscal multipliers are higher in Centre-Northern regions than in Southern ones. Such evidence is confirmed when fiscal foresight is considered. Our findings support the Keynesian perspective, indicating that Italy should increase public investments to foster economic growth especially in the poorest Southern regions
Monitoring of coastal erosion/progradation phenomena via groundpenetrating radar (GPR)
No full textGround penetrating radar (GPR) systems have traditionally been used to image subsurface objects. In the last
decades GPR, as a high-resolution geophysical technique, has increasingly been employed to produce images of
major erosional and depositional surfaces.
The work aims to evaluate the effectiveness of applying EM techniques for monitoring and controlling coastal
erosion/progradation. Such an issue assumes great interest with respect to the coastal and beach management
and protection. GPR measurements were taken along a Ionian sandy coast and artificial reflectors were employed
and displaced along some transects, buried in the subsoil and, eventually, joined together by means
of a cable system. The activity deals with the obtainment of accurate profiles representing the data base for
performing/developing/updating some issues related to “coastal management plan” in a wider framework of risk
assessment. Further, the activities are addressed to the evaluation of beach thickness in terms of accretion and/or
reduction as well as changes in the mean slope of the emerged and submerged beach. More over, laboratory
activities have been carried on in order to perform some specific calibrator tests. A tank containing a sandy soil
(LxBxH 10x4x2 mt) has been properly designed and built to allow the tuning of the activities related to response
of the reflectors in an environmental-controlled conditions. Some preliminary results are presented and discussed
A Characterization of Graphs with Small Palette Index
No full textGiven an edge-coloring of a graph G, we associate to every vertex v of G the set of colors appearing on the edges incident with v. The palette index of G is defined as the minimum number of such distinct sets, taken over all possible edge-colorings of G. A graph with a small palette index admits an edge-coloring which can be locally considered to be almost symmetric, since few different sets of colors appear around its vertices. Graphs with palette index 1 are r-regular graphs admitting an r-edge-coloring, while regular graphs with palette index 2 do not exist. Here, we characterize all graphs with palette index either 2 or 3 in terms of the existence of suitable decompositions in regular subgraphs. As a corollary, we obtain a complete characterization of regular graphs with palette index 3
Fattori di rischio macroeconomici e rendimenti delle strategie di portafoglio: ipotesi teoriche ed evidenza empirica
No full textFrom Fama-French (1993) and Carhart (1997) studies, which identify size, value, and momentum factors in addition to market risk as significant drivers of stock returns, the micro-finance research addressed the measurement of macroeconomic factors’ impacts on returns of portfolio strategies based on these multi-factor models. These analyses could be crucial in explaining the low or negative correlation often found in literature between the returns of such strategies (Cooper-Priestley 2009; Avramov et al. 2012; Asness et al. 2013; Wisniewski-Jackson 2020; Dahlquist-Hasseltoft 2020).
The contribution of this paper is twofold: i) to explain the theoretical foundation of expected impacts of the main macroeconomic factors on the returns of value and momentum strategies regarding equity and bond asset classes; ii) to verify whether these relationships are supported (in terms of sign and statistical significance) by the most recent empirical literature. The analysis shows that: i) univocal hypotheses on the expected links cannot be formulated; the causes of persistent returns of the two strategies, in fact, can be explained by adopting different theoretical perspectives, behavioural vs risk-premium models, which assume different linkages with macroeconomic factors; ii) the empirical findings are mixed; they could be also explained by differences, among studies, in country
samples (Continental Europe, Emerging Markets, UK, Developed Asia, and
USA), time periods, and testing methodology used. Nonetheless, the provided literature review is useful in delineating a comprehensive framework of the expected and empirically observed links
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