1,721,056 research outputs found
Tourism, residents' attitudes and perceived carrying capacity with an experimental study in five Tuscan destinations
No full textThis paper starts from the idea that tourism is an encounter of at least two non-homogeneous populations: residents and tourists. Their interaction may trigger conflicts and a population dynamics whose results are difficult to foresee. It follows that the sustainability of tourism depends simultaneously upon the sustainable use of local resources and the minimisation of the costs of conflict between the populations involved. The latter also depend on attitudes and perceptions that distinct groups of residents have toward tourism and other groups in their community. This issue is investigated within the tourism carrying capacity framework. The paper analyses both theoretically and empirically the likely outcomes of conflicts between distinct groups of residents. It presents and discusses the results of a research carried out in five famous tourist destinations in Tuscany, with a high number of tourists and seasonality of tourist flows. The main goals are to analyse how distinct groups of residents, characterised by different levels of involvement in tourism-related activities, perceive the tourism phenomenon, and to check whether there exists a latent or potential ground for conflicts between groups of residents. Contrary to expectations, the results portray communities with a high level of social acceptability toward tourism and an apparent lack of current conflict
Inconsistency and over-determination in neo-Kaleckian growth models: A note
Full text linkThis short note argues that the canonical neo-Kaleckian growth model does not yield a balanced growth path due to the absence of an inbuilt mechanism by which desired and actual rates of capital accumulation are equalized. Introduc- ing non-generating capacity autonomous demand does not solve such inconsistency. Contrary to what Lavoie (2016) claims, we show that the latter is also unable to bring capacity utilization to its normal level. In light of recent contributions (e.g., Nikiforos, 2013, 2016), we suggest that making normal capacity utilization an endogenous variable is an alternative better suited to deal with the issue
Economic growth and income distribution in Mexico: A cointegration exercise
Full text linkThe empirical evidence on the relationship between income inequality and economic growth is widely recognized and, now, there are rich databases for carry on panel-data type of analyses. However, time series studies for specific countries may be more attractive and yield revealing results. For this reason, we study hereafter the long-run relationship between economic growth and income inequality in the case of Mexico. To this end, a time series of data for the Gini coefficients from Solt (2011) is used over the period 1968–2010, within a cointegration exercise. Being related to a single country, our results are suffering less from problems of heterogeneity, endogeneity, and measurement errors, which are commonly encountered in cross-country growth regressions. We first investigate (and confirm) that the two series of per capita GDP and Gini index are cointegrated. Five different methodologies are implemented in our analysis, so that the robustness of cointegration results is guaranteed. We consistently also find that the relationship between those variables is negative. Moreover, results show the per capita GDP to be weakly exogenous. According to tests for Granger causality, unidirectional causality runs from per capita GDP to the Gini index
Noninvasive respiratory support in octogenarian patients with COVID-19
No full textBecause of decline in lung function and higher rates of comorbidities, aging may contribute to progression to severe forms of COVID-19. As a result, fatality rates of patients aged 80years or older admitted to the intensive care unit (ICU) for COVID-19-associated acute respiratory distress syndrome (ARDS) may exceed 80%. In this scenario, the use of invasive mechanical ventilation (IMV) resulted in extremely poor clinical outcomes, and noninvasive respiratory support (NIRS), including high flow nasal oxygen (HFNO), continuous positive airway pressure (CPAP), and noninvasive positive pressure ventilation (NPPV), was considered a potentially effective option to provide ventilatory treatment outside the ICU. However, the efficacy of NIRS in ARF secondary to SARS-CoV-2 infection remains controversial and the noninvasive approach should be used with caution in very old patients. Switching from NIRS to IMV is debated, as older patients transitioning to IMV do not appear to benefit from escalation therapy
Supplementary_material – Supplemental material for New evidence on the earliest human presence in the urban area of Genoa (Liguria, Italy): A multi-proxy study of a mid-Holocene deposit at the mouth of the Bisagno river
No full textSupplemental material, Supplementary_material for New evidence on the earliest human presence in the urban area of Genoa (Liguria, Italy): A multi-proxy study of a mid-Holocene deposit at the mouth of the Bisagno river by Daniele Arobba, Rosanna Caramiello, Marco Firpo, Luca Mercalli, Lionello F Morandi and Stefano Rossi in The Holocene</p
Some Complex Dynamics for a Multisectoral Model of the Economy.
No full textThe paper illustrates a novel, experimental approach to the dynamics of an observed economy described as a sequence of regime changes, and to compare it with traditional mul-tisectoral dynamics. It focuses on its global dynamic behavior and introduces a corresponding practical notion of structural change. The approach is best suited to qualitative comparisons of system dynamics, across spatially and/or temporally distributed systems (whole economies, regions, sectors). It deploys a computational heuristics, in which system dynamics is computer-simulated for theoretical purposes on the basis of empirically observed data. Some preliminary results of an exercise with Italian data for employment, accumulation and a productivity in the last two decades, are reported.L'article illustre une nouvelle approche expérimentale de la dynamique d'une économie concrète décrite comme une séquence de changements de régimes, à comparer avec la dynamique multisectorielle standard. Il met l'accent sur le comportement dynamique global et introduit la notion correspondante de changement structurel. L'approche est bien adaptée pour des comparaisons qualitatives de la dynamique de systèmes considérés suivant la dimension spatiale et/ou temporelle (économie globale, régions, secteurs). Il déploie une heuristique « computationnelle », dans laquelle la dynamique du système est simulée par ordinateur pour des bute théoriques et sur la base de données empiriques observées. Des résultats préliminaires de l'exercice sur données italiennes en matière d'emploi, d'accumulation et de production dans les deux dernières décennies, sont proposés.Punzo Lionello F. Some Complex Dynamics for a Multisectoral Model of the Economy. In: Revue économique, volume 46, n°6, 1995. pp. 1541-1559
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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