Portuguese Economic Journal
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Instabilities and robust control in natural resource management
Portuguese Economic Journal - Tập 12 - Trang 161-180 - 2013
Most renewable natural resources exhibit marked demographic and environmental stochasticities, which are exarcebated in management decisions by the uncertainty regarding the choice of an appropriate model to describe system dynamics. Moreover, demand and supply analysis often indicates the presence of instabilities and multiple equilibria, which may lead to management problems that are intensified......
Rank-based poverty measures and poverty ordering with an application to Tunisia
Portuguese Economic Journal - Tập 17 - Trang 117-139 - 2018
Using the normative approach, we develop a class of poverty measures that is function of a weighting system. Each particular weighting function corresponds to a particular social judgment. This offers the decision-maker a large selection of social preferences functions, and he can choose the one that best represents his social judgment. We also develop new concepts of a-extended TIP curves. They a......
Using the UTAUT model to analyze user intention to accept electronic payment systems in Serbia
Portuguese Economic Journal - Tập 22 - Trang 251-270 - 2022
This study applies The Unified Theory of Acceptance and Use of Technology (UTAUT) to explain the acceptance of electronic payment systems in Serbia. We used extended model that incorporates several external variables, such as perceived security, trust, privacy, convertibility and financial costs, along with basic UTAUT predictors. The sample comprised of 457 respondents. We applied structural equa......
The state of Portuguese research in economics: 20 years after
Portuguese Economic Journal - Tập 21 - Trang 283-309 - 2022
In this paper we look at the state of Portuguese research in economics, with an emphasis on the 2000–2019 period. For this purpose we use three distinct data sets, namely on publications, citations, and the situation of economics researchers in Portuguese universities. Over the last 20 years, the number of publications in international journals that show affiliations to Portuguese institutions as ......
The economic effects of improving investor rights in Portugal
Portuguese Economic Journal - Tập 8 - Trang 59-97 - 2009
The Portuguese economy has performed remarkably well since joining the EU in 1986. Output per worker grew at an annual rate of 2.25%. The relative price of investment has declined. Real investment has increased compared to output, in part fuelled by an increase in capital inflows. At the same time, resource allocation seems to have improved as well: firm-level data shows a significant decline in t......
Predation and reputation acquisition in debt markets
Portuguese Economic Journal - Tập 2 - Trang 1-21 - 2003
This paper presents a model of predation based on reputational differences between the entrant and an incumbent. While the incumbent has an established reputation in the debt market, the entrants’s quality is not yet known in the debt market. We show that the incumbent may have incentives to prey in order to interfere with the “reputation acquisition” of the entrant.
Beta trigonometric distributions
Portuguese Economic Journal - Tập 5 - Trang 207-224 - 2006
Beta distributions are popular models for economic data. In this paper, six new distributions are introduced which generalize the standard beta distribution. These distributions involve the trigonometric functions, sine and cosine. Expressions are derived for their analytical shapes, nth moments, method of moments estimators, maximum likelihood estimators and the associated Fisher information matr......
Nonlinear models with panel data
Portuguese Economic Journal - Tập 1 - Trang 163-179 - 2002
Panel data play an important role in empirical economics. With panel data one can answer questions about microeconomic dynamic behavior that could not be answered with cross sectional data. Panel data techniques are also useful for analyzing cross sectional data with grouping. This paper discusses some issues related to specification and estimation of nonlinear models using panel data.
Who should you vote for? Empirical evidence from Portuguese local governments
Portuguese Economic Journal - Tập 19 - Trang 5-31 - 2019
The economic literature considers voters quasi-rational agents that care about maximizing their individual welfare when deciding on who to vote for. Voters believe that, once a politician is elected, his or her characteristics will affect policy outcomes and consequently their private welfare. To assess whether mayors’ characteristics influence municipalities’ financial performance, I use a datase......
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