Loading...
Publication
A dinâmica entre exportação e produtividade no setor vinícola português no período de 2019 a 2023
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.68 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Este estudo investiga a relação entre exportações e produtividade no setor vinícola português, procurando clarificar a direção da causalidade entre estas duas variáveis. A questão de investigação centra-se em saber se as empresas vinícolas portuguesas exportam por serem mais produtivas (autosseleção) ou se se tornam mais produtivas por exportarem (learning-by-exporting). Para isso, foi utilizada uma metodologia quantitativa baseada em dados em painel de 409 empresas entre 2019 e 2023, estimando-se a produtividade total dos fatores (TFP) pelo método de Levinsohn & Petrin (2003) e aplicando-se um modelo Panel Vector Autoregression (PVAR), complementado pelo teste de causalidade de Granger. Os resultados mostram que a produtividade influencia positivamente a taxa de exportação, validando a teoria da autosseleção, segundo a qual apenas empresas mais eficientes conseguem superar os custos da internacionalização. No entanto, não se verificou um impacto significativo das exportações sobre a produtividade no curto prazo, contrariando parte da literatura sobre o efeito learning-by-exporting. O estudo contribui para o conhecimento empírico sobre a competitividade das PME vinícolas portuguesas, com base em dados recentes e metodologia robusta. Acrescenta ainda valor ao indicar que o reforço da produtividade deve preceder a internacionalização. Para os stakeholders — empresários, associações do setor e decisores políticos — os resultados oferecem orientações úteis para o desenho de estratégias e políticas mais eficazes, promovendo uma internacionalização sustentável do setor vinícola.
This study investigates the relationship between exports and productivity in the Portuguese wine sector, aiming to clarify the direction of causality between these two variables. The central research question is whether Portuguese wine companies export because they are more productive (self-selection) or become more productive as a result of exporting (learning-by-exporting). To address this, a quantitative methodology was employed, using panel data from 409 firms between 2019 and 2023. Total Factor Productivity (TFP) was estimated using the Levinsohn & Petrin (2003) method, and a Panel Vector Autoregression (PVAR) model was applied, complemented by Granger causality tests. The results show that productivity positively influences the export rate, supporting the self-selection theory, which argues that only more efficient firms can overcome the fixed costs of internationalization. However, no significant short-term impact of exports on productivity was found, challenging part of the literature on the learning-by-exporting effect. This study contributes to the empirical understanding of the international competitiveness of Portuguese wine SMEs, using recent data and a robust methodological approach. It adds value by highlighting that productivity improvements should precede internationalization. For stakeholders—such as business owners, industry associations, and policymakers—the findings offer practical guidance for designing more effective strategies and policies that foster sustainable internationalization in the wine sector.
This study investigates the relationship between exports and productivity in the Portuguese wine sector, aiming to clarify the direction of causality between these two variables. The central research question is whether Portuguese wine companies export because they are more productive (self-selection) or become more productive as a result of exporting (learning-by-exporting). To address this, a quantitative methodology was employed, using panel data from 409 firms between 2019 and 2023. Total Factor Productivity (TFP) was estimated using the Levinsohn & Petrin (2003) method, and a Panel Vector Autoregression (PVAR) model was applied, complemented by Granger causality tests. The results show that productivity positively influences the export rate, supporting the self-selection theory, which argues that only more efficient firms can overcome the fixed costs of internationalization. However, no significant short-term impact of exports on productivity was found, challenging part of the literature on the learning-by-exporting effect. This study contributes to the empirical understanding of the international competitiveness of Portuguese wine SMEs, using recent data and a robust methodological approach. It adds value by highlighting that productivity improvements should precede internationalization. For stakeholders—such as business owners, industry associations, and policymakers—the findings offer practical guidance for designing more effective strategies and policies that foster sustainable internationalization in the wine sector.
Description
Keywords
Produtividade total de fatores (TFP Exportações Setor vinícola portuguê Modelo PVAR Autosseleção Total factor productivity (TFP), Exports Portuguese wine sector PVAR model Self-selection
Pedagogical Context
Citation
Publisher
CC License
Without CC licence