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Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 620
Ronny Correa-Quezada ◽  
María del Cisne Tituaña-Castillo ◽  
María de la Cruz del Río-Rama ◽  
José Álvarez-García

This research examines the relationship between renewable energy consumption and electricity prices in six South American countries (Argentina, Bolivia, Colombia, Chile, Ecuador and Peru). The methodology used is a panel econometric model with annual data for the period 1990–2015. The results show that the consumption of renewable energies influences the price of electricity paid by households, although its influence is very moderate. On the other hand, it was observed that the consumption of renewable energies has no relationship with the energy prices of the industrial sector and the commercial and services sector. In the countries analyzed, an increase in GDP causes an increase in the price of energy in the industrial sector. With more CO2 emissions and a rise in the international price of oil, the annual average price of the industrial sector decreases.

2022 ◽  
Vol 15 (1) ◽  
Jeel Moya-Salazar ◽  
Bianca M. SantaMaria ◽  
Marcia M. Moya-Salazar ◽  
Víctor Rojas-Zumaran ◽  
Karina Chicoma-Flores ◽  

Abstract Objective To ensure the health of newborns, it is necessary to perform high-quality diagnostic tests. The TORCH panel is a set of tests that identifies infectious pathogens such as Toxoplasma (Toxo) and Cytomegalovirus (CMV) that are common in low-setting populations. We performed TORCH panel quality planning using six sigma in a reference laboratory at Peru. Results This was a cross-sectional study. TORCH tests include Toxo, Rubella, CMV, and Herpes. We processed all samples by fourth-generation ELISA on the GEMINI XCR200 analyzer (Diatron, Budapest, Hungary). We obtained the imprecision from the annual data of the external quality assessment plan and we used the CLSI EP12-A3 guideline. In a total of 44,788 analyses, the average imprecision was 3.69 ± 1.47%, and CMV had lower imprecision (2.3 and 2.6% for IgM and IgG, respectively). Quality planning of the TORCH panel allowed estimating the sigma value that ranged from 4 to 10 (average 7 ± 2 sigma), where rubella had the highest values (10 for IgM and 8 for IgG) while HSV2 had the lowest values (4 for IgM and 5 for IgG). Our results suggest the optimal performance of half of the markers including Toxoplasma, Rubella, and CMV in the Peruvian population.

D. A. Terentyev

Schematic distribution of the single-species TAC (total allowable catch) and RAС (recommended annual catch) in the complex quotas was developed for 2019 based on the long-term average annual data on the structure of the catches in major types of fishing within the Petropavlovsk-Commander subzone. Comparison of this distribution and real catches for this period was provided.

2022 ◽  
Vol 14 (2) ◽  
pp. 677
Guirong Jiang ◽  
Rafael Alvarado ◽  
Muntasir Murshed ◽  
Brayan Tillaguango ◽  
Elisa Toledo ◽  

Agricultural activities have a significant impact on environmental quality, because they generate waste that pollutes water and soil. In parallel, the supply of products has diversified in recent years to meet growing demand, exerting strong pressure on nature’s capacity for regeneration and absorption of waste. This research aims to examine the impact of agricultural employment and the export diversification index on ecological footprints, using advanced techniques of panel data econometrics. This relationship is moderated by population density and real per capita product. Cross-section dependence and slope homogeneity were included in the econometric models. The cointegration and causality analysis was reinforced by estimating the short- and long-term elasticities, using the AMG, CCE-MG, FMOLS, and DOLS models. Using annual data for 96 countries, we found a heterogeneous impact of agricultural employment and the export diversification index on ecological footprint, between the short and long term. The findings reveal that the increase of the product increases the pressure on the ecological footprint. The achievement of SDGs must include joint efforts between countries, and not in isolation. Those responsible for environmental policy should promote the idea that production must be friendly to the environment and promote the green growth of countries. The adoption of new technology, higher productivity agricultural employment, and the regulation of exports of sustainable products can contribute to achieving environmental sustainability.

Water ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 132
Huiling Zhou ◽  
Xiaocheng Zhou ◽  
Hejun Su ◽  
Ying Li ◽  
Fengli Liu ◽  

The Weixi–Qiaohou Fault (WQF) is considered an important zone of the western boundary of the Sichuan–Yunnan block, and its seismicity has attracted much attention after a series of moderate–strong earthquakes, especially the Yangbi Ms6.4 earthquake that occurred on 21 May 2021. In the present research, we investigate major and trace elements, as well as hydrogen and oxygen isotopes, of 10 hot springs sites located along the WQF, which are recharged by infiltrated precipitation from 1.9 to 3.1 km. The hydrochemical types of most analyzed geothermal waters are HCO3SO4-Na, SO4Cl-NaCa, and SO4-Ca, proving that they are composed of immature water and thus are characterized by weak water–rock reactions. The heat storage temperature range was from 44.1 °C to 101.1 °C; the circulation depth was estimated to range between 1.4 and 4.3 km. The results of annual data analysis showed that Na+, Cl−, and SO42− in hot springs decreased by 11.20% to 23.80% north of the Yangbi Ms5.1 earthquake, which occurred on 27 March 2017, but increased by 5.0% to 28.45% to the south; this might be correlated with the difference in seismicity within the fault zone. The results of continuous measurements of NJ (H1) and EYXX (H2) showed irregular variation anomalies 20 days before the Yangbi Ms6.4 earthquake. In addition, Cl− concentration is more sensitive to near-field seismicity with respect to Na+ and SO42−. We finally obtained a conceptual model on the origin of groundwater and the hydrogeochemical cycling process in the WQF. The results suggest that anomalies in the water chemistry of hot spring water can be used as a valid indicator of earthquake precursors.

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Phung Thanh Quang ◽  
Ehsan Rasoulinezhad ◽  
Nguyen Nhat Linh ◽  
Doan Phuong Thao

PurposeThe main purpose of this paper is to analyze the sustainable inward FDI pattern of Vietnam.Design/methodology/approachThis paper intends to analyze the sustainable FDI pattern of Vietnam using the gravity theory and panel data approach for the annual data over the period of 2007–2020.FindingsVietnamese FDI volume is positively affected by political and social factors, globalization and green energy consumption, while geographical distance is a major obstacle to the increase of FDI inflows of the country.Practical implicationsAs the main practical policy implications, issuing policies for sustainable economic growth, launching the novel strategy of green FDI neighborhood policy and regionalism through free trade agreements are recommended.Originality/valueTo the best of author's knowledge, there has not been any in-depth academic study focusing on the Vietnam's sustainable FDI. In addition, three robustness checks have been conducted to ensure the validation of empirical findings.

2022 ◽  
Vol 9 (1) ◽  
pp. 1-12

This study investigates the long-term determinants of capital buffers and risk-taking adjustment by focusing on a sample of listed Tunisian commercial banks. This research uses hand-collected semi-annual data. The panel autoregressive distributed lags technique is used to control for unit root processes and to check for long-term determinants of capital and risk-taking adjustment. The empirical findings prove the existence of a moral hazard and procyclical behaviour of Tunisian banks in response to capital requirements. However, some results indicate that capital standards are still an important prudential tool for ensuring the robustness of Tunisian banks. There have been no previous studies focusing on this issue in the context of the Tunisian banking system in the turbulent post-revolution era. This paper innovates by assuming that a set of bank-specific, macroeconomic and regulatory variables exert a long-term rather than a short-term influence on capital buffers and risk-taking. The research does not consider a possible long-term simultaneous relationship between capital and risk-taking. The sample could be extended if data were available. Tunisian banks are advised to diversify their sources of revenues and to thoroughly revise their business models in order to become less dependent on revenues from traditional intermediation activities and to reduce the procyclicality of the banking system.

2021 ◽  
Vol 20 (4) ◽  
pp. 813-833
Muhammed Veysel Kaya ◽  
Suat Serhat Yilmaz ◽  
Mehmet Gökhan Özdemir

Motivation: Humanity has benefited from natural resources in production activities throughout history and this pressure on natural resources has increased even more with the efforts of industrialization. In this process, people benefited heavily from fossil fuels in their production and distribution activities, thereby damaging the environment and the atmosphere to a large extent. With the destruction of the environment, it has become important for the countries and the academic circles to measure environmental damage with the increase of economic activities in order to take various measures. Aim: At this point, in this study, the relationship between economic growth and carbon-dioxide emissions was examined within the scope of 50 countries that are members of the Organization of Islamic Cooperation (OIC). In this process, annual data of the countries concerned between 1995 and 2017 were used; Pedroni Cointegration Analysis, Granger Causality Analysis, Pooled Mean Group Estimator (PMGE) and Mean Group Estimator (MGE) methods were used to measure and estimate the relationship between these two variables. The causality analysis shows that the economic growth is the Granger cause of carbon-dioxide emissions in the country group studied. In addition, the coefficients obtained in PMGE and MGE analyzes were found as 0.43 and 0.33 and were statistically significant and positive. Then, with the help of Hausman Homogeneity Test, it was decided between the two estimators, and it concluded that PMGE Estimator is the more reliable estimator. Results: The results obtained with the PMGE estimator indicate that the 1% increase in economic growth increased carbon dioxide emission by 0.43%.

Abdul-Hamid Ahmed ◽  
Kouadio Stephane N’Dri

Over the years, Ghana’s commercial banking industry has been bedeviled with numerous challenges. The unbridled effect of this is the 2018 banking sector megrim which led to the collapse of seven major banks. This pointed out that it is very crucial to identify and mitigate the factors that negatively affect the performance of the banking sector. This paper is used to investigate the effect of banks specific variables (BSVs) and macroeconomic variables (MEVs) on the profitability of commercial banks (NIM, ROE, and ROA) in Ghana using FRED annual data of 25 years. In order to avoid endogeneity problems and aggregation bias, we used the SURE model to run the estimates simultaneously. The result reveals that profit earned by Ghana’s commercial banks is largely influenced by both internal factors such as KA, AQR, LMGT, MEFFI, and Z-Score and fluctuations in the macroeconomic environment (GDP and FOREX). The impact of KA, LMGT, MEFFI, and Z-score is significantly positive whereas AQR (NPLs) is found to have a negative effect on banks profitability. GDP has a significant negative impact on Ghana’s commercial bank’s profitability whiles forex induced commercial banks profitability positively, but inflation CPI does not determine the profitability of commercial banks in Ghana.

2021 ◽  
Vol 16 (2) ◽  
pp. 274-301
Azwar Iskandar ◽  
Bayu Taufiq Possumah ◽  
Khaerul Aqbar ◽  
Akhmad Hanafi Dain Yunta

The recent studies about the role of Islamic philanthropy in addressing socio-economic problems have been growing and confirming its significant role in overcoming the problem. This is in line with the existence of regulations that support the effectiveness of its role in poverty reduction in Indonesia, such as Law No. 23 of 2011 on Zakat Management and Law No. 41 of 2004 on Waqf. This study has two objectives. First, to analyze the impact of Islamic philanthropy on poverty reduction as the socio-economic problems in Indonesia in the short and long run. Second, to analyze the effectiveness of integrated Islamic commercial and social-economic or finance to address the poverty compared to unintegrated one. This study used Auto-Regressive Distributed Lag (ARDL) approach to analyze annual data for the period of 2002-2019 while investigating the long and short-run relationships among variables. It found that Islamic philanthropy reduces poverty both in the short and long run, particularly in the integration of Islamic social and commercial finance in a single model. The government should therefore include Islamic philanthropy or other Islamic social finances as a fundamental strategy for building financial stability and sustainable development. (Menjamurnya studi-studi terbaru terkait peran filantropi Islam dalam mengatasi masalah sosial-ekonomi telah mengkonfirmasi peran pentingnya dalam mengatasi masalah ini.  Hal ini sejalan dengan adanya regulasi yang mendukung efektivitas perannya dalam pengentasan kemiskinan di Indonesia, seperti Undang-Undang Nomor 23 Tahun 2011 tentang Pengelolaan Zakat dan Undang-Undang Nomor 41 Tahun 2004 tentang Wakaf. Penelitian ini memiliki dua tujuan. Pertama, untuk menganalisis dampak filantropi Islam terhadap penurunan tingkat kemiskinan sebagai sebuah permasalahan sosial-ekonomi di Indonesia, baik dalam jangka pendek maupun jangka panjang. Kedua, untuk menganalisis efektifitas integrasi atau antara filantropi dan komersial dalam kerangka ekonomi Islam dalam mengatasi permasalahan kemiskinan. Penelitian ini menggunakan pendekatan Auto-Regressive Distributed Lag (ARDL) untuk menginvestigasi hubungan jangka pendek dan jangka panjang antara filantropi Islam dan tingkat kemiskinan selama periode tahun 2002-2019. Penelitian ini menemukan bahwa filantropi Islam dapat menurunkan tingkat kemiskinan baik dalam jangka pendek maupun jangka panjang. Penelitian ini juga menemukan bahwa ketika filantropi dan komersial dalam kerangka ekonomi Islam diintegrasikan, tingkat kemiskinan dapat diturunkan baik dalam jangka pendek maupun jangka panjang. Pemerintah seyogiyanya menempatkan filantropi Islam sebagai kebijakan dan strategi fundamental dalam rangka mewujudkan stabilitas keuangan dan pembangunan berkelanjutan.)

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