23 documents found, page 1 of 3
CLICTOUR - Roteiro para o turismo sustentável nas áreas protegidas do norte de ...
Sousa, Rita; Vieira, António; Silva, Luís; Ribeiro, Sara; Melo, Ana Duarte; Bento-Gonçalves, António; Viana, Artur; Gião, Cristiana GomesA indústria do turismo desempenha um papel de elevada relevância nas economias nacionais e regionais a nível global. Com o crescente interesse na visitação de áreas protegidas, muitas destas regiões, anteriormente intocadas, têm-se transformado em destinos turísticos de importância significativa e amplamente populares, atraindo um número elevado de visitantes anualmente. Ao mesmo tempo, várias áreas naturais e ...
Financiamento público do ensino superior em Portugal
Aguiar-Conraria, Luís; Cerdeira, Maria Luísa; Sarrico, Cláudia S.Os países membros da OCDE gastam, em média, 1,4% do seu PIB no ensino superior. No caso de Portugal, esta despesa, que inclui Estado e famílias, é de 1,1%. Considerando apenas a despesa direta do Estado, a média da OCDE é de 0,9% e a de Portugal 0,7%. Na generalidade dos países, o Estado financia o ensino superior. Já a importância das propinas pagas pelos estudantes, bem como os apoios que os estudantes recebe...
How far is gas from becoming a global commodity?
Aguiar-Conraria, Luís; Conceição, Gilmar; Soares, M. J.While we can say that there is a global market for crude oil, we cannot say the same cannot for natural gas. There is a strand of literature that argues that, in the last decades, gas markets have become less regional and more global. We use wavelets to test this hypothesis and conclude otherwise: although the European and Japanese gas markets are signifcantly synchronized, they are much less than the oil marke...
A time–frequency analysis of the Canadian macroeconomy and the yield curve
Ojo, Mustapha Olalekan; Aguiar-Conraria, Luís; Soares, M. J.We use wavelet analysis to study the relationship between the yield curve and macroeconomic indicators in Canada. We rely on the Nelson–Siegel approach to model the zero-coupon yield curve and use the Kalman filter to estimate its time-varying factors: the level, the slope and the curvature. Apart from establishing a bidirectional yield–macro relation, the paper broadens the existing literature by exploring the...
Okun's Law across time and frequencies
Aguiar-Conraria, Luís; Martins, Manuel M. F.; Soares, M. J.We present the first assessment of U.S. Okun's Law across time and frequencies. We use a set of continuous wavelet tools that allows for estimating Okun's coefficient and the lead/lag of output over unemployment at each moment and for each cyclical frequency. We find similar results for the gaps and the first differences specifications at business cycles frequencies, but not at lower frequencies. Okun's coeffic...
The Phillips Curve at 60: time for time and frequency
Aguiar-Conraria, Luís; Martins,Manuel M. F.; Soares, M. J.We estimate the U.S. New Keynesian Phillips Curve in the time-frequency domain with continuous wavelet tools, to provide an integrated answer to the three most controversial issues on the Phillips Curve. (1) Has the short-run tradeoff been stable? (2) What has been the role of expectations? (3)Is there a long-run tradeoff? First, we find that the short-run tradeoff is limited to some specific episodes and short...
Okun’s law across time and frequencies
Aguiar-Conraria, Luís; Martins, Manuel M. F.; Soares, Maria JoanaWe present the first assessment of U.S. Okun’s Law across time and frequencies, with a set of continuous wavelet tools that allows for estimating Okun’s coefficient and the lead/lag of output over unemployment at each moment of time for each cyclical frequency. We find similar results for the gaps and the first differences specifications at business cycles frequencies, but not at medium and long run cycles. Oku...
A time-frequency analysis of sovereign debt contagion in europe
Ojo,Mustapha Olalekan; Aguiar-Conraria, Luís; Soares, Maria JoanaThis paper adopted a wavelet approach to investigate the financial contagion in the Eurozone debt market during various crisis-ridden periods in the zone. We used weekly 10-year bond yield data and showed that until the onset of the financial crisis of 2007/2008, bond yields were highly synchronised among all countries. However, the bond yields in Greece, Ireland, Italy, Spain, and Portugal became unsynchronise...
What are the best quorum rules? A Laboratory Investigation
Aguiar-Conraria, Luís; Magalhães, Pedro C.; Vanberg, Christoph A.Many political systems with direct democracy mechanisms have adopted rules preventing decisions from being made by simple majority rule. The device most commonly added to majority rule in national is a quorum requirement. The two most common are the participation and the approval quora. Such rules are a response to three major concerns: the legitimacy of the referendum outcome, its representativeness (the conce...
Procedural Fairness, the Economy, and Support for Political Authorities
Magalhães, Pedro C.; Aguiar-Conraria, LuísA vast literature in social and organizational psychology suggests that support for authorities is driven both by the outcomes they deliver to people and by the extent to which they employ fair decision-making processes. Furthermore, some of that literature describes a process-outcome interaction, through which the effect of outcome favorability is reduced as process fairness increases. However, very few studie...