发布求助
文献互助 智能选刊 最新文献

Portuguese Economic Journal最新文献

筛选
英文 中文
Evaluating ensemble learning techniques for stock index trend prediction: a case of China 评估用于股指趋势预测的集合学习技术：以中国为例
IF 1.3 4区 经济学
Portuguese Economic Journal Pub Date : 2023-12-20 DOI: 10.1007/s10258-023-00246-1
Xiaolu Wei, Yubo Tian, Na Li, Huanxin Peng
{"title":"Evaluating ensemble learning techniques for stock index trend prediction: a case of China","authors":"Xiaolu Wei, Yubo Tian, Na Li, Huanxin Peng","doi":"10.1007/s10258-023-00246-1","DOIUrl":"https://doi.org/10.1007/s10258-023-00246-1","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"30 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138957289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Normal-beta exponential stochastic frontier model: Maximum simulated likelihood approach 正态-贝塔指数随机前沿模型：最大模拟似然法
IF 1.3 4区 经济学
Portuguese Economic Journal Pub Date : 2023-12-18 DOI: 10.1007/s10258-023-00247-0
Misgan Desale Nigusie
{"title":"Normal-beta exponential stochastic frontier model: Maximum simulated likelihood approach","authors":"Misgan Desale Nigusie","doi":"10.1007/s10258-023-00247-0","DOIUrl":"https://doi.org/10.1007/s10258-023-00247-0","url":null,"abstract":"<p>This paper considers the beta exponential distribution as a distribution function of inefficacy score in a stochastic frontier model. The beta exponential distribution is a three-parameter distribution, and it is more flexible than commonly used probability density functions in a stochastic frontier model (SFM). This new model, a “Normal-Beta Exponential SFM”, nests another five SFMs. This paper presents a simulated log-likelihood function and simulated inefficiency estimator of a normal-beta exponential SFM, a closed form log-likelihood function and closed form inefficiency estimator of a normal-weighted exponential SFM, and an empirical study using a normal-beta exponential SFM. In our empirical study, we have used a likelihood ratio test to compare the performance of SFMs and a normal-beta exponential SFM fits the data better than other nested special case SFMs. Furthermore, the empirical result shows that parameters of a normal-beta exponential SFM can be estimated with less standard error or high certainty than a normal-gamma SFM.</p>","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"101 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138715212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Income redistribution and carbon emissions in Portugal 葡萄牙的收入再分配和碳排放
IF 1.3 4区 经济学
Portuguese Economic Journal Pub Date : 2023-11-21 DOI: 10.1007/s10258-023-00244-3
Sulhi Ridzuan
{"title":"Income redistribution and carbon emissions in Portugal","authors":"Sulhi Ridzuan","doi":"10.1007/s10258-023-00244-3","DOIUrl":"https://doi.org/10.1007/s10258-023-00244-3","url":null,"abstract":"<p>Portugal’s income tax system is very progressive and has a greater redistributive effect than the European Union average. This progressive income redistribution, however, comes at a cost to the environment. This note finds that—using Portuguese time series data over the period 1970–2018—income redistribution increases carbon dioxide emissions in the long run. This is consistent with the theoretical literature, which suggests that redistributing income increases consumption among the bottom class group (and thereby emissions). We propose some policy recommendations to help policymakers find a balance between social equity and climate goals. In addition, this note also shows that the most common proxy of income redistribution used in the empirical literature may be inappropriate and lead to false conclusions.</p>","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"52 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138515271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of Petrobras spending on economic cycles by the lengths of its multipliers computed from non-linear model 巴西国家石油公司的支出对经济周期的影响通过其乘数的长度从非线性模型计算
4区 经济学
Portuguese Economic Journal Pub Date : 2023-10-16 DOI: 10.1007/s10258-023-00241-6
Edmundo Inacio, Cassio Garcia Ribeiro, Carolina Troncoso Baltar, Rosangela Ballini, Yanchao Li
{"title":"The impact of Petrobras spending on economic cycles by the lengths of its multipliers computed from non-linear model","authors":"Edmundo Inacio, Cassio Garcia Ribeiro, Carolina Troncoso Baltar, Rosangela Ballini, Yanchao Li","doi":"10.1007/s10258-023-00241-6","DOIUrl":"https://doi.org/10.1007/s10258-023-00241-6","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136113638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trade shocks and real effective exchange rates dynamics in Nigeria 尼日利亚的贸易冲击和实际有效汇率动态
4区 经济学
Portuguese Economic Journal Pub Date : 2023-10-02 DOI: 10.1007/s10258-023-00240-7
Oluwatomisin J. Oyewole, Damilola M. Ibidun, Mamdouh Abdulaziz Saleh Al-Faryan
{"title":"Trade shocks and real effective exchange rates dynamics in Nigeria","authors":"Oluwatomisin J. Oyewole, Damilola M. Ibidun, Mamdouh Abdulaziz Saleh Al-Faryan","doi":"10.1007/s10258-023-00240-7","DOIUrl":"https://doi.org/10.1007/s10258-023-00240-7","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135833326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Avoiding the Dutch Disease in tourism-led economies: reconciling tourism development and sectoral diversification 在以旅游为主导的经济中避免荷兰病:协调旅游发展和部门多样化
4区 经济学
Portuguese Economic Journal Pub Date : 2023-09-28 DOI: 10.1007/s10258-023-00243-4
Federico Inchausti-Sintes
{"title":"Avoiding the Dutch Disease in tourism-led economies: reconciling tourism development and sectoral diversification","authors":"Federico Inchausti-Sintes","doi":"10.1007/s10258-023-00243-4","DOIUrl":"https://doi.org/10.1007/s10258-023-00243-4","url":null,"abstract":"Abstract Although tourism has produced long-term growth and progress, the economic consequences of this economic specialisation, which is summarised by the paradoxical effect known as the Dutch Disease, alongside the worst financial performance in tourism-led economies as a result of the COVID-19 pandemic, indicate the need for diversification in such economies. Previous research has overwhelmingly shown that tourism development results in decreases in traditional exports, overdevelopment of services and marginalises the weight of industry in the economy. Using a theoretical dynamic general equilibrium model, this article demonstrates that the Dutch Disease can be avoided in tourism-led economies, precisely owing to tourism specialisation, and non-tourism development is possible. More importantly, non-tourism development can be achieved by simultaneously enhancing the quality of tourism-based activities to increase international competitiveness.","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"230 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135344256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time and frequency volatility spillovers among commodities: Evidence from pre and during the Russia-Ukraine war 大宗商品的时间和频率波动溢出效应:来自俄乌战争前后的证据
4区 经济学
Portuguese Economic Journal Pub Date : 2023-09-21 DOI: 10.1007/s10258-023-00242-5
Yunfei Chen, Wei Jiang
{"title":"Time and frequency volatility spillovers among commodities: Evidence from pre and during the Russia-Ukraine war","authors":"Yunfei Chen, Wei Jiang","doi":"10.1007/s10258-023-00242-5","DOIUrl":"https://doi.org/10.1007/s10258-023-00242-5","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136155665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Climate change’s impact on commodity prices: a new challenge for monetary policy 气候变化对大宗商品价格的影响：货币政策面临的新挑战
IF 1.3 4区 经济学
Portuguese Economic Journal Pub Date : 2023-09-07 DOI: 10.1007/s10258-023-00237-2
Jamilu Iliyasu, A. R. Sanusi
{"title":"Climate change’s impact on commodity prices: a new challenge for monetary policy","authors":"Jamilu Iliyasu, A. R. Sanusi","doi":"10.1007/s10258-023-00237-2","DOIUrl":"https://doi.org/10.1007/s10258-023-00237-2","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48093923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The time-varying impacts of global economic policy uncertainty on macroeconomic activity in a small open economy: the case of Turkey 全球经济政策不确定性对小型开放经济体宏观经济活动的时变影响:以土耳其为例
IF 1.3 4区 经济学
Portuguese Economic Journal Pub Date : 2023-09-06 DOI: 10.1007/s10258-023-00239-0
M. Daştan, Kerem Karabulut, Ömer Yalçinkaya
{"title":"The time-varying impacts of global economic policy uncertainty on macroeconomic activity in a small open economy: the case of Turkey","authors":"M. Daştan, Kerem Karabulut, Ömer Yalçinkaya","doi":"10.1007/s10258-023-00239-0","DOIUrl":"https://doi.org/10.1007/s10258-023-00239-0","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41470983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Producer service industry agglomeration and eco-efficiency of tourism enterprises: theoretical mechanism and empirical test 生产性服务业集聚与旅游企业生态效率:理论机制与实证检验
IF 1.3 4区 经济学
Portuguese Economic Journal Pub Date : 2023-05-29 DOI: 10.1007/s10258-023-00235-4
Ruidai Tang
{"title":"Producer service industry agglomeration and eco-efficiency of tourism enterprises: theoretical mechanism and empirical test","authors":"Ruidai Tang","doi":"10.1007/s10258-023-00235-4","DOIUrl":"https://doi.org/10.1007/s10258-023-00235-4","url":null,"abstract":"","PeriodicalId":45031,"journal":{"name":"Portuguese Economic Journal","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52199628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信