Protesting or justifying? A latent class model for contingent valuation with attitudinal data

This article develops a latent class model for estimating willingness-to-pay for public goods using simultaneously contingent valuation (CV) and attitudinal data capturing protest attitudes related to the lack of trust in public institutions providing those goods. A measure of the social cost associated with protest responses and the consequent loss in potential contributions for providing the public good is proposed. The presence of potential justification biases is further considered, that is, the possibility that for psychological reasons the response to the CV question affects the answers to the attitudinal questions. The results from our empirical application suggest that psychological factors should not be ignored in CV estimation for policy purposes, allowing for a correct identification of protest responses.

Internal consultants as positive change agents

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics

Analysis of the progress of lifelong learning strategies of Portuguese Economics and Management Schools

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics

Three essays on economics of predictability of stock returns

A PhD Dissertation, presented as part of the requirements for the Degree of Doctor of Philosophy from the NOVA - School of Business and Economics

Essays in environmental and happiness economics

A PhD Dissertation, presented as part of the requirements for the Degree of Doctor of Philosophy from the NOVA - School of Business and Economics

Four essays in behavioral economics

A PhD Dissertation, presented as part of the requirements for the Degree of Doctor of Philosophy from the NOVA - School of Business and Economics

Higher education branding: Nova School of Business and Economics and Bocconi University

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics

Suicide study : a psychological autopsy

RESUMO: O'suicídio'é'atualmente'um'problema'de'saúde'pública.'Estimarse'que'um'milhão'de'pessoas' morra'anualmente'devido'ao'suicídio.'De'acordo'com'diversas'agências'e'organizações'estimar 'que'ocorram'entre'20'a'40'tentativas'de'suicídio'por'cada'suicídio'consumado.'Os'custos'associados'ao'suicídio,'quer'humanos'quer'económicos'são'enormes'e'estendemrse'à'família,'emprego,'economia'e'finanças.'Os'números'oficiais'do'suicídio'em'Portugal'indicam'uma'taxa ligeiramente'acima'dos'10'por' cada'100'000'habitantes'mas' comportando' regiões'onde' são'observadas' taxas' muito' elevadas,' como' no' Sudoeste' de' Portugal' onde' se' observam particularmente taxas 3'vezes'acima'da'média'nacional.' Investigámos' o' fenómeno' com' os' objetivos' de' validar' a' técnica' de' autópsia' psicológica' em' contexto' comunitário' nunca' realizado' em' Portugal,' e' dar' um' contributo' para' uma' compreensão'mais'alargada'deste'problema'de'saúde'pública,'especialmente'nesta'região'de' Odemira.' A' autópsia' psicológica' consiste' em' reunir' detalhadamente' informação' sobre' a'personalidade' e' vida' de' alguém' que' morreu' em' circunstâncias' equívocas' (por' suicídio,' homicídio' ou' acidente)'recorrendo'ainda'a'registos'e'documentação,'bem'como'procedendo'a entrevistas' com' familiares,' colegas' ou' amigos.' Foi' feita' uma' adaptação' de' uma' entrevista' semirestruturada' para' o' efeito.' Foram' recrutados' 2' grupos' de' participantes:' um' grupo' de familiares de pessoas que cometeram'suicídio'(n=30)'e'um'grupo'de'familiares'de'pessoas'que morreram de causas' naturais' (n=24).' O' estudo' decorreu' em' 3' momentos' com' sessões' de' apresentação' (i),' sessões' de' preparação' (ii)' e' entrevistas' para' recolha' de' informação' e'monitorização.'' Os' principais' resultados'mostram' que' existiram' dificuldades' na' obtenção' da' informação' a'partir' dos' entrevistados,' a'maioria' dos' suicidas' eram'homens' acima' dos' 40' anos' de' idade,' afetados' por' lesões' graves' ou' doenças' graves' ' no' período' adulto' embora' apresentassem'condições' válidas' para' trabalhar,' reformados,' vivendo' em' família,' com' traços' de'personalidade' amargurados,' tristes' ou' pessimistas,' com' escassas' atividades' nos' tempos' de' lazer,' sem' problemas' somáticos' significativos' ou' perturbações'mentais' que' comunicaram' a intenção de morrer previamente'e'provenientes'de'famílias'sem'dificuldades'económicas'ou'relações'familiares'desadequadas.' Tendo'em'conta'a'literatura,'algumas'das'características'parecem'ser'muito'particulares'desta'população.'Aparentemente'o'suicídio'poderá'ter'implicações'genéticas'que'deveriam'ser'tidas'em'conta'em'futuras'investigações.' A'integração'da'saúde'mental'nos'cuidados'de'saúde'primários'afigurarse'urgente'tendo'em' conta' que' a' escassez' de' profissionais' de' saúde'mental' é' enorme' numa' parte' do' país' onde'ocorre' o'maior'número'de' suicídios.'Mudar'de'modelo'e'reorganizar'os' serviços'de' forma'a' poder' dar' uma' resposta' ao' défice' de' tratamento' de' saúde' mental' e' ter' em' conta' os' determinantes'sociais'da'saúde'para'fazer'face'ao'isolamento'é'fundamental.' ---------------ABSTRACT: Suicide' is,'nowadays,' a'public'health'problem.'A'million'dies' annually'by' suicide'worldwide.' According'to'several'agencies'and'organizations'an'estimation'of'20'to'40'suicide'attempts'is advanced for each complete' suicide. Associated'costs'to'suicide,'both'human'and'economic,'are' huge' and' spread' on' family,' jobs,' economy,' and' finances.' Official' available' figures' for' suicide' in' Portugal' indicate' a' rate' slightly' over' 10' for' each' 100' 000' inhabitants,' but' with'regions'where'one' can' actually' find'extremely'high' rates,' like' for' instance' in' the'Southwest' part' of' the' country,' where' are' regularly' found' rates' 3' times' higher,' when' compared' to'national'average.'' We' have' investigated' the' phenomenon' aiming' to' validate' the' technique' of' psychological'autopsy' in' a' community' context' never' explored' before' in' Portugal' and' to' contribute' for' a' wider' understanding' of' this' public' health' problem,' especially' in' this' region' of' Odemira.' Psychological'autopsy'consists'into'a'detailed'gathering'of'information'about'the'personality'and' life' of' someone' died' in' equivocal' circumstances' (suicide,' homicide,' accident),' registries and other'documentation'as'well'as'interviews'with'family'members,'corworkers'and'friends.' An' adaptation' of' a' semirstructured' interview' was' made.' Two' groups' of' participants' were'recruited: a'group of'relatives'of'people'committing'suicide'(n=30),'and'a'group'of'relatives'of'people' whose' death' was' after' natural' causes' (n=24).' Study' was'made' in' 3'moments' with'presentation'sessions;'(i)'preparation'sessions;'(ii)'interviewing'data'collection'and'monitoring' iii).'' Main'results'showed'difficulties'to'obtain'information'from'interviewees,'most'suicides'were' from males over 40 years old, affected'by'serious'illness'or'severe'injury'in'adulthood'but'valid'to'work,'retired,'living'in'family,'with'bitterness,'sad'or'pessimistic'as'personality'traits,'with'few' leisure' activities,' without' significant' health' somatic' problems' or' mental' disorders,'communicating'intention'to'die'previously,'coming'from'families'with'no'indication'of'financial'distress'or'inadequate'family'relationship.' Taking'into'account'the'literature'it'looks'like'some'features'seem'to'be'quiet'particular'from'this'population.'Apparently'one'might'say'that'suicide'could'have'genetic'implications'which'further'research'should'account'in'the'future.' Integration' of'mental' health' into' primary' care' is' urgent' once' the' scarcity' of'mental' health' professionals' is' enormous' in' a' part' of' the' country' where' most' suicides' occur.' Scaling' up services must go in order'to'address'to'treatment'gap'and'social'determinants'of'health'should'be'taken'into'account'to'face'isolation.' Results' show' that' the' profile' of' the' suicidal' in' the' region' of' Odemira' is' particular' and'implications' of' genetics' should' be' taken' into' account.' Moreover' much' can' be' done' in'organization' of' services' in' the' region' where' we' performed' the' present' study' in' order' to'address'to'treatment'gap'for'mental'disorders'and'to'the'social'determinants'of'health.

What makes people stay in or leave shrinking cities? An empirical study from Portugal

The relative attractiveness of cities as places to live determines population movements in or out of them. Understanding the appealing features of a city is fundamental to local governments, particularly for cities facing population decline. Pull and push attributes of cities can include economic aspects, the availability of amenities and psychological constructs, initiating a discussion around which factors are more relevant in explaining migration. However, a pull–push approach has been underexplored in studies of shrinking cities. In the present study, we contribute to the discussion by identifying pull and push factors in Portuguese shrinking cities. Data were collected using a face-to-face questionnaire survey of 701 residents in four shrinking cities: Oporto, Barreiro, Peso da Régua and Moura. Factor analysis and automatic linear modelling were used to analyse the data. Our results support previous findings that the economic activity of a city is the most relevant feature for retaining residents. However, other characteristics specific to each city, especially those related to heritage and natural beauty, are also shown to influence a city’s attractiveness as a place to live. The cause of population shrinkage is also found to influence residents’ assessments of the pull and push attributes of each city. Furthermore, the results show the relevance of social ties and of place attachment to inhabitants’ intention to continue living in their city of residence.

The economics of Vieira da Silva

This paper investigates the time valuation and the age valuation profile of art-works created by the Portuguese female painter Maria Helena Vieira da Silva. It uses data from records from her paintings auction sales between 1986 and 2014, taken from Artprice.com. The study explores three aspects regarding her artistic career: (1) estimation of Age-valuation profile, defining her creativity pattern and the age at which she produced her most valuable paintings; (2) estimation of time valuation profile, through a creation of an individual hedonic price index for Vieira da Silva; (3) internationalization phenomenon of the artist, investigating whether selling prices are primarily set in euros or in US dollar. The results suggest that Vieira da Silva peaked quite early in her career; her paintings prices are not very sensible to economic cycles and tends to slightly increase afterlife; the empirical results are not suggestive on which currency is the best predictor of her paintings’ price.

Do the psychological impacts of war cause poverty?: Evidence from Mozambique

This paper evaluates the extent to which war-related psychological distress causes poverty. The endogeneous nature of mental distress is addressed by using exposure to the civil war in Mozambique as an instrument. It is found that exposure to war has a significant and positive long-lasting impact on mental distress. Furthermore, the causal impact of war-related psychological distress on income and wealth is shown to be significant, negative, and nonnegligible. One standard deviation increase in mental distress decreases income by half a standard deviation. These findings are robust to alternative specifications, including the use of an alternative database on the incidence of PTSD in Mozambique.

Social capital : Social capital and psychological sense of community in the neighborhood - Predicting and preventing

Dissertação de Mestrado apresentada ao ISPA - Instituto Universitário

The efficacy of the old way/new way methodology on the correction of an automated technical error and its impact on the athlete’s psychological skills : Case study in tennis

The aim of this study was to evaluated the efficacy of the Old Way/New Way methodology (Lyndon, 1989/2000) with regard to the permanent correction of a consolidated and automated technical error experienced by a tennis athlete (who is 18 years old and has been engaged in practice mode for about 6 years) in the execution of serves. Additionally, the study assessed the impact of intervention on the athlete’s psychological skills. An individualized intervention was designed using strategies that aimed to produce a) a detailed analysis of the error using video images; b) an increased kinaesthetic awareness; c) a reactivation of memory error; d) the discrimination and generalization of the correct motor action. The athlete’s psychological skills were measured with a Portuguese version of the Psychological Skills Inventory for Sports (Cruz & Viana, 1993). After the intervention, the technical error was corrected with great efficacy and an increase in the athlete’s psychological skills was verified. This study demonstrates the methodology’s efficacy, which is consistent with the effects of this type of intervention in different contexts.

Essays in health economics: Volume-Outcome Effect, upcoding behaviour and the evaluation of a short-term intervention program

Evidence in the literature suggests a negative relationship between volume of medical procedures and mortality rates in the health care sector. In general, high-volume hospitals appear to achieve lower mortality rates, although considerable variation exists. However, most studies focus on US hospitals, which face different incentives than hospitals in a National Health Service (NHS). In order to add to the literature, this study aims to understand what happens in a NHS. Results reveal a statistically significant correlation between volume of procedures and better outcomes for the following medical procedures: cerebral infarction, respiratory infections, circulatory disorders with AMI, bowel procedures, cirrhosis, and hip and femur procedures. The effect is explained with the practice-makes-perfect hypothesis through static effects of scale with little evidence of learning-by-doing. The centralization of those medical procedures is recommended given that this policy would save a considerable number of lives (reduction of 12% in deaths for cerebral infarction).

The new economy: Essays in network economics and two-sided markets

Following the Introduction, which surveys existing literature on the technology advances and regulation in telecommunications and on two-sided markets, we address specific issues on the industries of the New Economy, featured by the existence of network effects. We seek to explore how each one of these industries work, identify potential market failures and find new solutions at the economic regulation level promoting social welfare. In Chapter 1 we analyze a regulatory issue on access prices and investments in the telecommunications market. The existing literature on access prices and investment has pointed out that networks underinvest under a regime of mandatory access provision with a fixed access price per end-user. We propose a new access pricing rule, the indexation approach, i.e., the access price, per end-user, that network i pays to network j is function of the investment levels set by both networks. We show that the indexation can enhance economic efficiency beyond what is achieved with a fixed access price. In particular, access price indexation can simultaneously induce lower retail prices and higher investment and social welfare as compared to a fixed access pricing or a regulatory holidays regime. Furthermore, we provide sufficient conditions under which the indexation can implement the socially optimal investment or the Ramsey solution, which would be impossible to obtain under fixed access pricing. Our results contradict the notion that investment efficiency must be sacrificed for gains in pricing efficiency. In Chapter 2 we investigate the effect of regulations that limit advertising airtime on advertising quality and on social welfare. We show, first, that advertising time regulation may reduce the average quality of advertising broadcast on TV networks. Second, an advertising cap may reduce media platforms and firms' profits, while the net effect on viewers (subscribers) welfare is ambiguous because the ad quality reduction resulting from a regulatory cap o¤sets the subscribers direct gain from watching fewer ads. We find that if subscribers are sufficiently sensitive to ad quality, i.e., the ad quality reduction outweighs the direct effect of the cap, a cap may reduce social welfare. The welfare results suggest that a regulatory authority that is trying to increase welfare via regulation of the volume of advertising on TV might necessitate to also regulate advertising quality or, if regulating quality proves impractical, take the effect of advertising quality into consideration. 3 In Chapter 3 we investigate the rules that govern Electronic Payment Networks (EPNs). In EPNs the No-Surcharge Rule (NSR) requires that merchants charge at most the same amount for a payment card transaction as for cash. In this chapter, we analyze a three- party model (consumers, merchants, and a proprietary EPN) with endogenous transaction volumes and heterogenous merchants' transactional benefits of accepting cards to assess the welfare impacts of the NSR. We show that, if merchants are local monopolists and the network externalities from merchants to cardholders are sufficiently strong, with the exception of the EPN, all agents will be worse o¤ with the NSR, and therefore the NSR is socially undesirable. The positive role of the NSR in terms of improvement of retail price efficiency for cardholders is also highlighted.