Erratum to: Equivalence scales,the cost of children and household consumption patterns in Italy

This article deals with the estimation of parametric equivalence scales for Italian households with different demographic characteristics: composition, location and number of employed members in the household. Using a sample of 43,701 observations on monthly current expenditures from 1997 to 2004 we estimate a demand system for ten goods and we tackle the problem of corner solutions for some goods adopting the Two Step estimator proposed by Shonkweiler and Yen (Am J Agric Econ 81:972–982, 1999). The consumption behavior of households is also analyzed calculating compensated, uncompensated and expenditure elasticites for each commodity. By considering households that differ in composition (number of children), geographic location (four-different macro-areas of Italy), and number of employed adults, we allow for a range of useful comparisons.     

Larger posterior mode wavelet thresholding and applications

This paper explores the thresholding rules induced by a variation of the Bayesian MAP principle. The MAP rules are Bayes actions that maximize the posterior. The proposed rule is thresholding and always picks the mode of the posterior larger in absolute value, thus the name LPM. We demonstrate that the introduced shrinkage performs comparably to several popular shrinkage techniques. The exact risk properties of the thresholding rule are explored, as well. We provide extensive simulational analysis and apply the proposed methodology to real-life experimental data coming from the field of atomic force microscopy.     

The individual side of ambidexterity: Do individuals’ perceptions match actual behaviors in reconciling the exploration and exploitation trade-off?

The paper addresses the issue of the exploration–exploitation dilemma, adopting a micro level of analysis. Unlike the extensive literature on ambidexterity that investigates the organizational solutions that allow firms to pursue the balance between the two kinds of learning orientation, this research draws attention to the as yet barely analyzed individual dimension of ambidexterity. Specifically, in investigating personal ambidexterity we point to the relevance of individuals’ perceptions on what their role requires of them and the actual behaviors they perform.     

Do Economic Recovery Packages Open a Window of Opportunity for Corruption and Mismanagement? The Case of Italy in the Aftermath of the Covid-19 Pandemic

Public Organization Review - This paper explores the effects of the pandemic on corruption and mismanagement in Italy, a country where the Covid-19 crisis is supposed to have significantly...     

Money and Credit Redux

We analyze money and credit as competing payment instruments in decentralized exchange. In natural environments, we show the economy does not need both: if credit is easy, money is irrelevant; if credit is tight, money is essential, but credit becomes irrelevant. Changes in credit conditions are neutral because real balances respond endogenously to keep total liquidity constant. This is true for both exogenous and endogenous debt limits and policy limits, secured and unsecured lending, and general pricing mechanisms. While we show how to overturn some of these results, the benchmark model suggests credit might matter less than people think.     

Unemployment and education mismatch in the EU before and after the financial crisis

This paper investigates whether general formal education still helps youth avoid situations of unemployment and inactivity in favour of other labour force statuses (dependent employment, self-employment, education) across EU countries over the period 2006–2010. In a second step, we analyse whether the relationship between education and the labour statuses above is affected by different degrees of country-level education mismatch. Our results show that after the outbreak of the crisis and in countries with high educational mismatch there is an additional reduction in unemployment risk for highly educated people that is accompanied by a higher probability of being an employee than of remaining in education.     

Invariant dependence structure under univariate truncation

The class of all bivariate copulas that are invariant under univariate truncation is characterized. To this end, a family of bivariate copulas generated by a real-valued function is introduced. The obtained results are also used in order to show that the Clayton family of copulas (including its limiting elements) coincides with the class of copulas that are invariant under bivariate truncation and contains all exchangeable copulas which are invariant under univariate truncation.     

Measures of non-exchangeability for bivariate random vectors

We introduce a set of axioms for measures of non-exchangeability for bivariate vectors of continuous and identically distributed random variables and give some examples together with possible applications in statistical models based on the copula function.     

Acyclically 3-colorable planar graphs

In this paper we study the acyclic 3-colorability of some subclasses of planar graphs. First, we show that there exist infinite classes of cubic planar graphs that are not acyclically 3-colorable. Then, we show that every planar graph has a subdivision with one vertex per edge that is acyclically 3-colorable and provide a linear-time coloring algorithm. Finally, we characterize the series-parallel graphs for which every 3-coloring is acyclic and provide a linear-time recognition algorithm for such graphs.