1,721,261 research outputs found
Benedicti Pererii Valentini, E Societate Jesu ... Tomus Selectarum Disputationum In Sacram Scripturam
No full textBENEDICTI PERERII VALENTINI, E SOCIETATE JESU ... TOMUS SELECTARUM DISPUTATIONUM IN SACRAM SCRIPTURAM
Benedicti Pererii Valentini, E Societate Jesu ... Tomus Selectarum Disputationum In Sacram Scripturam
... continens super libro Exodi centum triginta septem Disputationes (1
Enforcement and environmental quality in a decentralized emission trading system
Full text linkEmissions trading, Environmental federalism, Enforcement, Monitoring cost, H70, Q58,
A note on international emissions trading with endogenous allowance choices
No full textIn this note we extend the analysis developed by Helm (2003) and consider an international emissions trading system (ETS) where the initial allocation of tradeable permits may be chosen non cooperatively, as in Helm, or cooperatively. We first derive conditions guaranteeing that polluting firms located in a given country benefit from an increase in the received amount of emission permits; then, we compare the countries' allocation choices under both a non-cooperative (decentralized) and a cooperative (centralized) regime, showing that, both in each country and on aggregate, decentralization leads to a lower environmental quality than the "first best" that would arise under a centralized ETS. As a result, the equilibrium permits price in the latter case is higher than under decentralization. We show that this conclusions do not depend only on the presence of transboundary pollution, but also on the international dimension of emissions trading. Finally, although centralization leads to higher welfare and better environmental quality, we find that some countries might not consent to it and, moreover, we identify cases where consensus on centralization cannot be recovered by simply redistributing permits among countries
South Asian Diaspora in Italy: settlement patterns and locational factors
No full textPurpose: This paper empirically explores the spatial distribution of the four major South Asian communities in Italian municipalities between 2004 and 2014 and identifies the key determinants of these patterns. Design/methodology/approach: SAP’s (South Asian People) location patterns are investigated through a large and varied set of explanatory variables. Employing a settlement model and the inflow approach, we disentangle the impact of conventional pull factors and the network effect. Findings: We observe how SAP in Italy are concentrated in some specific locations, away from the natives. This decentralised clustered distribution results from a mix of contextual pull factors and ethnic networks with a strong local character. However, national communities exhibit striking differences in location patterns, determined by different pull factors. We found evidence of the overall persistence of drivers over time, which generated substantial inertia in the settlement patterns of SAP national groups over the 2008 crisis. Practical implications: We stressed how SAP have different settlement patterns and drivers, so they cannot be treated as a unicum. They call for place-based policies tailored to the specific needs of individual communities. Originality/value: We examine the relevant but under-researched SAP diaspora in Italy by comparing the Indian, Pakistani, Bangladeshi and Sri Lankan location models across all the Italian municipalities and checking if and how their spatial distribution changed over the 2008 crisis
Pricing discretion and price cap regulation
No full textThis paper analyses how limiting the pricing discretion by a price capped firm can affect its pricing decision and the entry decision by potential competitors. We focus on two regulatory regimes. A first regime (Absolute) is given by the combination of an average price cap and an additional constraint on the absolute level of prices in the monopolistic markets. An alternative regime (Relative) entails, along with the price cap constraint, a constraint on the ratio between prices in monopolistic and captive markets. The main findings of the paper are as follows. Prices in the competitive (captive) market are generally higher (lower) under the Relative regime. The Relative regime generally grants higher likelihood of entry at a given scale and gives rise to higher aggregate consumers’ surplus when, differently than the Absolute regime, it is able to foster entry. However, when entry occurs under both regimes, the Absolute regime brings about (weakly) higher aggregate consumers’ surplus. The ranking between the two regimes is reversed when they are evaluated in terms of industry profits. The effect on social welfare as given by a weighted sum of aggregate consumers’ surplus and industry profits is indeterminate
Social preferences and price cap regulation
No full textThis paper analyses the allocative properties of price cap regulation under very general hypothesis on the nature of the society’s preferences. We propose a generalised price cap that ensures the convergence to optimal (second best) prices in the long-run equilibrium for virtually any form of the welfare function. Hence, the result of the convergence to Ramsey prices of Laspeyres-type price cap regulation is a particular instance of our more general result. We also provide an explicit and relatively easy to calculate and implement price cap formula for distributionally weighted utilitarian welfare functions, as suggested by Feldstein (1972a)
Web usability Today
No full textThe aim of this work is to introduce the constant transformation and evolution of the usability concept. An overview of methods, techniques and theories concerning usability is supplied. The reported review starts from the description of traditional ergonomic methods and models, coming to the suggestion of innovative theoretical and methodological proposals. We claim that usability should always take context into account when studying artifacts such as hardware and software, as they are not to be considered as mere tools,unrelated to the concrete situation in which they are used. Thus, usability has to be implemented within a cultural framework, from which actions take their
meaning
Mobile phones-like electromagnetic fields effects on human psychomotor performance
No full textOver the last 20 years the exponential increase in
mobile phone (MP) availability has given rise to
questions about possible effects on users. Indeed,
since a discrete amount of radiofrequency (RF)
electromagnetic fields (EMFs) emitted by mobile
phones is transmitted through the skull and reaches
the brain, it is possible to hypothesize a physiological
influence of these low level RF EMFs
on human cerebral activity, and a consequent
potential influence on cognitive performance. A
number of studies have assessed several aspects
of human cognitive and behavioural performance,
such as: short-term and working memory, attention
(divided, selective, and focused), spatial and
verbal recognition, vigilance, learning, decision
making or perception (for a recent metanalysis see
Valentini Ferrera, & Presaghi, 2010). The entry
will focus on volunteer studies, that is experimental
studies with volunteer human individuals. Most
experimental studies with RF exposure were
conducted as laboratory studies. Within each laboratory
study, the entry will report only cognitive
and psychomotor effects of MP-like EMFs. Each
of these effects were tested by means of different
tests and tasks, administered by a computer or in
a paper-and-pencil fashion. Usually dependent
variables were measures of speed (i.e., the time
needed to accomplish the requested activity) or
accuracy (i.e., the number of correct responses to
the task or, conversely, the number of errors or
absence of response to a task)
Patterns of Intergenerational Educational (Im)Mobility
Full text linkIntergenerational education mobility is a key dimension of social mobility and explores the extent to which educational attainment is transmitted across generations within a society. The implications of low education mobility concern both equity (everyone should have the same opportunities) and efficiency (it would be good for the economy and society if the most gifted and deserving young people were to study and not the children of the already educated). The literature identifies several drivers that can influence the level of social mobility in general and education mobility specifically, including characteristics of educational systems, public spending, degree of urbanisation, informal frictions, and beliefs. This paper seeks to identify ‘patterns of intergenerational education (im)mobility’ through a cluster analysis that takes into account the level of intergenerational mobility in education and a number of variables concerning its possible drivers, considering data on 82 countries (with different levels of development). The advantage of cluster analysis lies in the possibility of identifying regularities, but avoiding reasoning ‘on average’, i.e., safeguarding the possibility that different social patterns may exist. The results also allow us to speculate on possible policies to increase school mobility, highlighting, among other things, the ‘equalising’ role played by public spending on education
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