Economic Increment Research Articles

Predicting energy futures high-frequency volatility using technical indicators: The role of interaction

In this paper, we investigate the predictability of technical indicators on energy futures volatility from the high-frequency and high-dimensional perspectives. We show that the technical indicators have significant impacts on crude oil and natural gas futures volatility based on in- and out-of-sample analysis. Further, we analyze the impacts of interactions among predictor variables on future volatility. Based on an improved conditional sure independence screening model, we find that the interactions contribute to the out-of-sample predictive power significantly. The improved model has robust and better forecasting performance relative to extant popular dimension reduction methods, forecast combination methods, and regularization methods. Moreover, we show that the out-of-sample predictability is robust during various periods. Finally, we show that technical indicators improve economic value in the crude oil market but the economic increment is not significant in the natural gas market.

КОРПОРАТИВНЕ ВОЛОНТЕРСТВО В КОНТЕКСТІ СОЦІАЛЬНОЇ ВІДПОВІДАЛЬНОСТІ БІЗНЕСУ

he volunteering essence and its types were considered in the article. Defined, the multidirectional structures and multifunctionality of volunteering allow us to confirm its economic, environment and social value is being increased. In this work was discovered the connection between country’s economic growth which basic evaluating ratio serves as the gross national income per capita and population proportion that participated in volunteer activities. The Pearson correlation coefficient was calculated using two investigated indicators by the instance of 12 Europe countries in 2019. We gained a next result: rxy= 0,9475 it demonstrates an essential impact of citizen volunteering on economic increment. The mathematical economic model had been developed to concretise the correlation between investigated indicators. In the article was defined close and direct dependency between the economic indicator and the proportion of participated volunteers: the more people were being involved in volunteering activities, the more GNI per capita was being increasd. We defined that corporate volunteering was the most crucial part of business social responsibility. There were analysed the realization of main corporate volunteering activities in Ukraine, which of them at the present stage are blood donation, parks cleaning, gardening, medical organisation financial assistanse, ATO fighters support, the care of cancer-affected children. Employee volunteering advantages for different social entities such as business, employees and communities were determined. Corporate volunteering practises enhance company image and provide their stable competitive market through the improvong process of employee loyalty, rising the quantity of external stakeholders’ positive responses about a company, the increasing level of employee ethical conduct, motivation, team spirit, and initiative.

French experience: international mobility of researchers in light of implementing the governmental tasks to increase efficiency of innovative sectors of economy

The term “innovation” was first used at the beginning of the 20th century by renowned economist Joseph Schumpeter meaning the changes aimed at implementing and using new types of consumer goods, new methods of production and vehicles, markets and forms of organization in industry. However, it is in recent years that the innovative sectors of economy have become noticeable in the national space of various countries on the political and economic map of the world. According to consultancies, the leading positions in the sector of innovation are held by digital companies. The slogan of one of them (Apple) – Think Different – is a most accurate reflection of the general logic of the intellectual and, ultimately, economic increment within innovative companies. The G8 and G20 countries increasingly often invest huge amounts in national projects aimed at supporting the relevant spheres of innovation. For instance, in Russia over 1 billion rubles was invested in innovative projects by governmental funds in 2019. The race for breakthrough science-and-research technologies creates a global competitive background for presenting the best innovative products to the global science-and-research community. At the same time, it should be recognized that the innovative sectors of national economies, due to the peculiarities of the organization and activities thereof, objectively cannot take an isolated position in relation to international cooperation in general and international mobility of researchers in particular. This article gives a critical analysis of the institution of international mobility of researchers looking at the example of the French Republic, a traditional leader in the field of science, research, technology and innovation.

Production of biodiesel using oil obtained from fish processing residue by conventional methods assisted by ultrasonic waves: Heating and stirring

The biofuels have great ecological advantages against the petroleum fuels, especially when they are obtained from residues with environmental pollution potential. So, the biodiesel was produced using oil from the fish processing residue collected in the Fishermen’s Colony Z-3, Brazil, and the experiments were developed with two different methods for production of biofuels. The fish residue was thermally treated to extract the fatty material and the biodiesel was produced by the methods of heating, stirring, and heating and stirring assisted by ultrasonic waves. The best biodiesel was with heating and stirring method with yields of 92.37% and 97.95% with the reaction times of 30 and 60 min, respectively. The ultrasonic method provided the highest biodiesel yield at the sonication time of 2 min, at the frequency of 20 kHz. The biodiesel produced from the fish waste showed high concentrations of sodium, potassium and magnesium. Furthermore, the production of biodiesel from a potential residue that can contaminate the environment, such as fish residue, promotes a social and economic increment in a community like Fishermen’s Colony Z-3.

On coordinated development of oasis and environment in arid area

Based upon the formation and evolution of oasis and the factors restricting the coordinated development of oasis economy and environment, this paper presents a goal of the development in coordination. It suggests that the sustainable survival and development of oasis could be ensured only if the oasis-desert and water source ecology are managed in a combined way to form a macro system. In light with the above mentioned, the approach to the development of economy and environment of oasis in arid area should depend upon the establishment of an oasis ecological and economic system, which suits the arid environment and promotes the efficiency of resource configuration, stabilizes economic increment and benefits ecological development.