Contribution to the study of PPP arrangements in airport development,management and operation

Following the liberalization wave in the airline sector, airports have been gradually taken out of the public sphere and open to the private initiative. This phenomenon is generally referred to as privatization, but not all the cases consist of, in fact, a full divestiture of assets. Although infrastructure management is undertaken by the private sector during a pre-defined period, usually 30 years or more, the property remains public or is transferred to the public domain after that period. This is a form of Public–Private Partnership (PPP) where two different models can be found: institutionalized PPP or a typical contractual regime, such as the concession arrangements. PPP options have been a “hot” topic over the last decade, but few studies can be found in the literature on the PPP projects development in airport systems, for example, as far as risk sharing is concerned. This paper looks at recent developments in airport “privatization”, distinguishing privatizations from PPP arrangements, through a case study approach, and establishing a comparative analysis of different PPP models used for airport management. Some comments are made about the Portuguese model and the announcement of future privatization.     

Together or separately? The efficiency and market structure of Portuguese airports

This paper analyses the market structure of Portuguese airports and the way that they have performed. It is found that the profits exceeded normal returns between 2001 and 2008, with productivity growing only slowly despite expansions in passenger numbers and aircraft movements. A particular problem that emerges is a loss of efficiency at airports dominated by the major airport operator.     

SEC interventions and the frequency and usefulness of non-GAAP financial measures

This paper examines the effect of two Securities and Exchange Commission regulatory interventions related to disclosure of non-GAAP financial measures. There are three main results. First, the probability of disclosure of non-GAAP earnings declines in 2003, but the probability of disclosure of other non-GAAP financial measures has an accelerated decline after the first intervention. Second, all else equal, after Regulation G, investors have a positive market reaction to the disclosure of non-GAAP earnings. Finally, investors react to the adjustments made by I/B/E/S financial analysts as they do to the GAAP surprise, but they do not react to the additional adjustments made by firms.     

Modelling preferences for nature-based recreation activities

This research contributes to a better understanding of visitors’ preferences and behavioural patterns in national parks and protected areas. A conceptual model is proposed to explain why visitors prefer particular nature- or culture-based activities. It integrates three components – outdoor recreation participation, expectancy-value and environmental attitudes. The New Environmental Paradigm is used to capture environmental attitudes, and the motivations for travelling to parks are based on the push and pull motivation factors. Structural equation modelling is used to test the proposed model using data from 401 domestic visitors to Portuguese parks and other protected areas. Results show that nature-based sports are influenced by motivation to do adventurous sports and by social norms; the pro-environmental attitudes, the motivation to enjoy nature and the influence of others affect the interest in interpretation activities; the model’s strongest impact on recreation activities is from culture-related motives.     

Renewable energy drivers: a panel cointegration approach

The expected gains from RES deployment to the reduction of carbon dioxide emissions (CO₂) and the cut-off of external dependence of electricity sources could be important. However, it is crucial to understand the determinants of RES growth to help policymakers drawing effective energy polices, involving a commitment of both citizens and governments. In this paper, we use novel panel econometric tools (taking into account structural breaks and cross-section dependence) and find evidence of nonstationary issues and cointegration issues between renewable energy production and its drivers (CO₂ emissions, GDP per capita, energy use and dependency). The results thus reveal that non-stationary issues should be attended, otherwise they could be biased. Using suitable estimators (DOLS, FMOLS) with two different data sets and different proxies and taking common factors into account by MG estimates, we find that there is no environmental concerns effect explaining the growth of renewables in European countries. However, national revenues, energy consumption (demand effect) and energy dependency have a positive impact on renewables deployment. Considering these results, economic assistance (subsidies) might be a mean to increase further the renewables deployment in EU countries and education about renewables deployment is needed.     

A network approach for assembling and linking input–output models

Input–output (IO) models, describing trade between different sectors and regions, are widely used to study the environmental repercussions of human activities. A frequent challenge in assembling an IO model or linking several such models is the absence of flow data with the same level of detail for all components. Such problems can be addressed using proportional allocation, which is a form of algebraic transformations. In this paper, we propose a novel approach whereby the IO system is viewed as a network, the topology of which is transformed with the addition of virtual nodes so that available empirical flow data can be mapped directly to existing links, with no additional estimation required, and no impact on results. As IO systems become increasingly disaggregated, and coupled to adjacent databases and models, the adaptability of IO frameworks becomes increasingly important. We show that topological transformations also offer large advantages in terms of transparency, modularity and increasingly importantly for global IO models, efficiency. We illustrate the results in the context of trade linking, multi-scale integration and other applications.     

Is big better? On scale and scope economies in the Portuguese water sector

The ‘big is better’ idea has recently been challenged in network industries. Scale economies are considered finite so that for the individual utility an optimal scale of operations arises. A similar observation yields for scope economies as joint production is not predicted univocally anymore. In the water sector, scale economies and joint production are preferred. Nevertheless, several countries are restructuring the sector in order to improve the scale and scope of operations. This article intends to provide some insights into this matter. We analyze the Portuguese water market structure using non-parametric techniques with data from the year 2005. After surveying the literature on scale and scope economies, we discuss the peculiarities of the Portuguese water sector. The paper confirms the natural monopoly features. Although scope economies are absent, it highlights scale economies. The optimal scale of the utilities is located between 160,000 and 180,000 inhabitants. As such, the Portuguese water sector optimally counts 60 water utilities.     

A Quantile Approach to Identify Factors Promoting Renewable Energy in European Countries

This paper analyses the impact of several factors on the use of renewable energy sources in a set of European Union countries, by applying a quantile regression approach. We find that different factors are effective for different levels of renewable energy commitment and the magnitudes of some effects evolve in accordance with the level of renewable energy sources used. Consequently, some policies that do not take into account the different stages could carry different effects. The results suggest that the lobbying effect of the established industries hampers the development of renewable sources, and that this effect is greater for lower initial level of renewable energy use. The results reveal that environmental concerns have not yet achieved enough pressure to stimulate major developments on renewables. We include two new drivers, geographic area and European Union Directive 2001/77/EC. That Directive was effective in signaling the commitment to renewables, namely for countries with lower renewables use.     

The dynamic effects of shocks to wages and prices in the United States and the Euro Area

This article investigates the dynamics of aggregate wages and prices in the United States (US) and the Euro Area (EA) with a special focus on persistence of real wages, wage and price inflation. The analysis is conducted within a structural vector error-correction model, where the structural shocks are identified using the long-run properties of the theoretical model, as well as the cointegrating properties of the estimated system. Overall, in the long run, wage and price inflation emerge as more persistent in the EA than in the US in the face of import price, unemployment, or permanent technology shocks. This finding is robust to the changes in the sample period and in the models’ specifications entertained in the article.     

Habit,Decision-Making,and Rationality: Comparing Thorstein Veblen and Early Herbert Simon

The article aims to contribute to the convergence between institutional and neo-Schumpeterian evolutionary economics. It intends to help unify the behavioral foundations of these two strands of thought by returning to the original views of their main historical inspirations. It thus proposes a comparative analysis of the theory of human behavior developed by Thorstein Veblen and Herbert Simon, respectively. The article notably discusses how Simon’s early work links together the notions of habit, rationality, and the decision-making process, and explores the extent to which his views are consistent with, complementary to, or divergent from Veblen’s. The article highlights several commonalities between Simon and Veblen’s views on habits. However, Simon departs from Veblen in developing a dual model of human behavior which clearly differentiates habit-based from decision-based behaviors. The article argues that neo-Schumpeterian evolutionary economists should go beyond this binary model and build on the pragmatist-Veblenian approach, in which these two dimensions are intimately entangled. This process could allow the economists in question to take advantage of the most valuable insights of institutional economics regarding the interactions between individual choices and habits and institutions.