Publicação
Econometric analysis of private medicines expenditure in Portugal
| Resumo: | The Portuguese National Health System states that access to health care should depend mainly on need. Conditional on need, access to pharmaceuticals should not depend on socio-economic factors such as income, social class, education or geographical factors such as the access to pharmacies. This study uses data from the last two waves of National Health Survey (1995/1996 and 1998/1999) and focuses on equity issues testing for the existence of insurance inequalities, income-related and pharmacies density related inequalities. A two-part model was adopted. To model the probability of occurrence of medicines private expenditure, a modified LOGIT model was specified accounting for the double nature of the zeros of the dependent variable and asymmetry. In the second part a Poisson pseudo maximum likelihood estimator was adopted. No misspecification was detected in the two-part model. The main results showed inequity in Portuguese private medicines expenditures with respect to supplementary health insurance (private and job related), income and pharmacies density. |
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| Autores principais: | Inês, Mónica Sofia Inácio Duarte |
| Assunto: | Portuguese National Health Survey Medicines Expenditure Two-part model Poisson pseudo maximum likelihood estimator Inquérito Nacional de Saúde - Portugal Medicamentos Despesa Modelo em duas partes Poisson pseudo máxima verosimilhança |
| Ano: | 2007 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | The Portuguese National Health System states that access to health care should depend mainly on need. Conditional on need, access to pharmaceuticals should not depend on socio-economic factors such as income, social class, education or geographical factors such as the access to pharmacies. This study uses data from the last two waves of National Health Survey (1995/1996 and 1998/1999) and focuses on equity issues testing for the existence of insurance inequalities, income-related and pharmacies density related inequalities. A two-part model was adopted. To model the probability of occurrence of medicines private expenditure, a modified LOGIT model was specified accounting for the double nature of the zeros of the dependent variable and asymmetry. In the second part a Poisson pseudo maximum likelihood estimator was adopted. No misspecification was detected in the two-part model. The main results showed inequity in Portuguese private medicines expenditures with respect to supplementary health insurance (private and job related), income and pharmacies density. |
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