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rss_1.0 Recursos de colección

AMS Acta (7.496 recursos)
Repository of the University of Bologna.

Settori scientifico-disciplinari MIUR = Area 13 - Scienze economiche e statistiche: SECS-P/03 Scienza delle finanze

Mostrando recursos 1 - 20 de 24

1. A Top Dog Tale with Preference Rigidities - Randon, Emanuela; Simmons, Peter
With preference rigidities we find Pareto optima of an exchange economy, some of which involve unconsumed endowments. We show that such Pareto Optima can only be attained as market equilibria if there is a top dog in the initial endowment distribution who is richer than the other individuals. The most inegalitarian efficient allocation favouring the top dog is globally stable and is in the core. For endowment distributions with a top dog, the core contains efficient allocations more equal than the market equilibrium. A voting mechanism or government policy can also offset the top dog’s power.

2. Measuring Consumption Externalities - Randon, Emanuela
Estimation and measurement of consumption externalities are still challenging problems in applied research. In this paper, externalities as Nash equilibrium are estimated using consumer demand theory and a large data set. We estimate Nash equilibrium consumption externalities in petrol budget shares of households living in a metropolitan area in UK. The reaction curves are derived from an Almost Ideal Demand System (AIDS) with externalities. A continuous set of ten year cross sections from the Family Expenditure Surveys is used. In each year, income decile cohorts are created. Results of 2SLS with Panel Data are presented after 2SLS estimates with pooling cross...

3. La responsiveness dei sistemi sanitari: un’analisi empirica sull’assistenza ospedaliera nel Servizio Sanitario Regionale dell’Emilia Romagna - Robone, Silvana; Fiorentini, Gianluca; Nicoli, M. Augusta; Stefania, Rodella
The release of the World Health Report 2000 has brought to the fore the concept of responsiveness as an indicator of health system performance. Responsiveness relates to a system’s ability to respond to the legitimate expectations of potential users about non-health enhancing aspects of care (Valentine et al. 2003). A few studies have investigated how standard socio-demographic characteristics (such as income or education) have an influence on the evaluation of responsiveness by health care users (Puentes Rosas et al. 2006, Sirven et al. 2012, Rice et al. 2012). However, we are not aware of any study investigating the relationship between the...

4. Are bad health and pain making us grumpy? An empirical evaluation of reporting heterogeneity in rating health system responsiveness - Fiorentini, Gianluca; Ragazzi, Giovanni; Robone, Silvana
This paper considers the influence of patients’ characteristics on their evaluation of a health system’s responsiveness, that is, a system’s ability to respond to the legitimate expectations of potential users regarding non-health enhancing aspects of care (Valentine et al. 2003a). Since responsiveness is evaluated by patients on a categorical scale, their selfevaluation can be affected by the phenomenon of reporting heterogeneity (Rice et al. 2012). A few studies have investigated how standard socio-demographic characteristics influence the reporting style of health care users with regard to the question of the health system’s responsiveness (Sirven et al. 2012, Rice et al. 2012). However,...

5. Dealing with minor illnesses: the link between primary care characteristics and First Aid Clinics’ attendancesA - Donatini, Andrea; Fiorentini, Gianluca; Lippi Bruni, Matteo; Mammi, Irene; Ugolini, Cristina
The reformulation of existing boundaries between primary and secondary care, in order to shift selected services traditionally provided by Emergency Departments to community-based alternatives has determined a variety of organisational solutions aimed at reducing the ED overcrowding. One innovative change has been the introduction of fast-track systems for minor injuries or illnesses, whereby community care providers are involved in order to divert patients away from EDs. These facilities offer an open-access service for patients not requiring hospital treatments, and may be staffed by nurses and/or primary care general practitioners operating within, or alongside, the ED. To date little research has...

6. Delegating home care for the elderly to external caregivers? An empirical study on Italian data - Lippi Bruni, Matteo; Ugolini, Cristina
We study care arrangement decisions in Italy, where families are increasingly delegating the role of primary caregiver to external (paid) people also for the provision of home care. We consider a sample of households with a dependent elderly person cared for either at home or in a residential home, extracted from a survey representative of the population of Italy’s Emilia-Romagna region. We investigate the determinants of a household’s decision to opt for one of the following three alternatives: the institutionalisation of elderly family members, informal home care, or paid home care. We estimate two model specifications, based on a simultaneous...

7. Scritti scelti (Economia Politica e Scienza delle Finanze) - Luciani, Nino
Si consiglia di salvare il contributo sul proprio pc in caso di attesa prolungata nell'apertura del file

8. Measuring Consumption Externalities - Randon, Emanuela
Estimation and measurement of consumption externalities are still challenging problems in applied research. In this paper, externalities as Nash equilibrium are estimated using consumer demand theory and a large data set. We estimate Nash equilibrium consumption externalities in petrol budget shares of households living in a metropolitan area in UK. The reaction curves are derived from an Almost Ideal Demand System (AIDS) with externalities. A continuous set of ten year cross sections from the Family Expenditure Surveys is used. In each year, income decile cohorts are created. Results of 2SLS with Panel Data are presented after 2SLS estimates with pooling cross...

9. Efficient Allocations, Equilibria and Stability in Scarf's Economy - Randon, Emanuela; Simmons, Peter
Scarf's economy has been a vehicle in understanding stability properties in exchange economies. The full set of market equilibria and Pareto optimal allocations for this economy has not been analysed. This paper aims to do that. Firstly, we examine the Pareto optima and we and three different classes. Only Class I exhausts the aggregate endowments of all the goods. Class II and III involve throwing away partially or totally one good in order to achieve Pareto efficiency. Secondly, we explore the price and endowment distribution combinations which sustain the different Pareto Optima as market equilibria. A Pareto optimum which involves throwing away the whole endowment of...

10. A Top Dog Tale with Preference Rigidities - Randon, Emanuela; Simmons, Peter
With preference rigidities we find Pareto optima of an exchange economy, some of which involve unconsumed endowments. We show that such Pareto Optima can only be attained as market equilibria if there is a top dog in the initial endowment distribution who is richer than the other individuals. The most inegalitarian efficient allocation favouring the top dog is globally stable and is in the core. For endowment distributions with a top dog, the core contains efficient allocations more equal than the market equilibrium. A voting mechanism or government policy can also offset the top dog’s power.

11. L’imposta sul valore aggiunto: regime ordinario e regime del margine a confronto. Il caso del mercato dell’arte - Candela, Guido; Randon, Emanuela; Scorcu, Antonello E.
In letteratura, il confronto tra i metodi di calcolo dell’imposta sul valore aggiunto (regime ordinario e regime del margine) è limitato: si riduce al risultato di equivalenza ottenuto con aliquote identiche e uniformi nelle diverse fasi della produzione e dello scambio. In questo lavoro proponiamo un’analisi comparativa generale per stabilire la desiderabilità di un metodo rispetto all’altro in relazione alla struttura delle aliquote, alla tipologia dei soggetti coinvolti, alle politiche di commercializzazione. I risultati sono applicati per valutare il meccanismo di formazione dei prezzi nel mercato dell’arte. Si propongono degli interventi di riforma per rendere il regime fiscale neutrale e trasparente, incentivando scambi e investimenti.

12. Ernesto d'Albergo, Economia della finanza pubblica. Edizione digitalizzata a cura di Nino Luciani - d'Albergo, Ernesto; Gola, Guglielmo; da Empoli, Domenico; Luciani, Nino

13. A Reproducing Kernel Perspective of Smoothing Spline Estimators - Bianconcini, Silvia
Spline functions have a long history as smoothers of noisy time series data, and several equivalent kernel representations have been proposed in terms of the Green's function solving the related boundary value problem. In this study we make use of the reproducing kernel property of the Green's function to obtain an hierarchy of time-invariant spline kernels of different order. The reproducing kernels give a good representation of smoothing splines for medium and long length filters, with a better performance of the asymmetric weights in terms of signal passing, noise suppression and revisions. Empirical comparisons of time-invariant filters are made with...

14. The valuation of new ventures - Sereno, Luigi
Traditional tools fail to capture the value of new ventures, such as R&D projects and start-up companies, because of their dependence on future events that are uncertain at the time of the initial decision. In the real options setting the value of these investments is the value of the follow-on opportunities they may create. Our aim is to study the multicompound option approach to value sequential investment opportunities taking into account multiple interactions among real options.

15. Prospect theory and the law of small numbers in the evaluation of asset prices - Luppi, Barbara
We develop a model of one representative agent and one asset. The agent evaluates the earnings according to Prospect Theory and he does not know exactly the stochastic process generating earnings. While the earnings are generated by a random walk process, the agent considers a Markovian process, according to which firm’s earnings move between two regimes, represented by a mean-reverting process and a trend process, as in Barberis, Shleifer and Vishny (1998). We study how an agent who is loss averse evaluates the price of a stock when she takes into account the wrong stochastic process. This twofold departure from rationality determines permanent effects on stock prices, even in long...

16. A suggestion for simplifying the theory of asset prices - Cesari, Riccardo
Using an ordinal approach to utility, in the spirit of Hicks (1962, 1967a), it is possible to greatly simplify the theory of asset prices. The basic assumption is to summarize any probability distribution into its moments so that preferences over distributions can be mapped into preferences over vectors of moments. This implies that assets, like Lancaster’s (1966) consumption goods, are bundles of characteristics and can be directly priced, at the margin, in terms of the market portfolio. Expected utility is not required and both St.Petersburg and Allais paradoxes may be easily solved.

17. Corporate taxation and its reform: the effects on corporate financing decisions in Italy - Bontempi, Maria Elena; Giannini, Silvia; Golinelli, Roberto
The aim of this paper is twofold. First, we measure the relationship between fiscal variables and companies debt choices in Italy using a dynamic representation of the modified pecking order model, where both trade-off and pecking order theories are nested. Second, our estimation results are used, jointly with some tax simulations undertaken with a company microsimulation tax-model (MATÍS), to assess the effects on leverage of two recent tax reforms in Italy since 1996. Main results suggest that: (a) fiscal effects are significant and robust explanations of firms’ financial behaviour; (b) the reforms analysed are able to induce similar reductions in firms’ leverage, when compared with the situation prevailing...

18. Le incongruenze del credito d’imposta sui dividendi: un esempio di casualita’ della politica tributaria. - Matteuzzi, Massimo
In questo lavoro si dimostra che la discipina del credito di imposta sui dividendi è divenuta incoerente col il regime di indeducibilità dell’ILOR dalla base dell’imposta societaria, vigente dopo il 1991. Vengono quindi esaminate le distorsioni che sono state create da tali incongruenze, che avvalorano l’ipotesi di un notevole grado di improvvisazione nella politica tributaria

19. Reforming the Personal Income Tax and the Family Allowance in Italy: a Proposal - Matteuzzi, Massimo; Toso, Stefano
We illustrate a proposal to reform the personal income tax and the family allowance in Italy which aims at attaining a fair tax treatment of the family, laying emphasis on the redistributive processes in favour of large and poor households. Our proposal is based on a simplification of the tax rate schedule (with a reduction of income brackets) and a new design of the tax credits for dependents which implies the fiscal exemption of a sort of basic income, which is decreasing as the income of the household increases. The new scheme of supplementary tax credits for dependents, related to...

20. Stima di una cost-efficiency frontier e valutazione della qualità per l’offerta di servizi sociali: il caso del servizio asilo nido in Italia - Fazioli, Roberto; Filippini, Massimo
(non presente)

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