Navigating carbon emissions in G-7 economies: a quantile regression analysis of environmental-economic interplay.

This study employs panel data from 1990 to 2020 for the G-7 countries (Canada, France, Germany, Italy, Japan, the UK, and the USA) and employs the examination of heterogeneous slope coefficients and cross-sectional dependence tests as preliminary steps before conducting cointegration analysis and second-generation unit-root tests. This study employs the method of movement quantile regression (MMQR) to analyze long-run and short-run relationships. The findings from the MMQR model indicate that economic growth and imports have a negative impact on consumption-based CO2 (CCO2) emissions, which worsens at higher quantiles. On the other hand, exports, energy efficiency, and renewable energy output (REO) have a positive effect on mitigating CCO2 emissions, with this effect becoming more pronounced at higher quantiles. Furthermore, the robustness of the results was confirmed through rigorous checks using quantile regression with optimized Markov Chain Monte Carlo techniques, which is a reliable non-parametric approach. These checks consistently demonstrated a significant impact on CCO2 emissions, thus validating the findings obtained from MMQR. Based on the outcomes, this study recommends that each G-7 nations should make efforts to regulate their CCO2 emissions by adopting measures that foster ecological equilibrium. Moreover, fostering export-driven sectors, exploring innovative strategies for REO, and improving energy efficiency are crucial measures for effectively tackling CCO2 emissions within the G-7 countries. The study highlights that renewable energy output (REO) and energy efficiency effectively mitigate CCO2 emissions at higher quantiles, suggesting the importance of policy measures supporting their development. Additionally, policies targeting import reduction, export promotion, and carbon pricing mechanisms emerge as strategies to curb emissions and foster sustainable development.

Dynamics of green economic development in countries joining the belt and road initiative: Is it driven by green investment transformation?

Green investment transformation is the main interval difference of the Belt and Road Initiative, however, its actual effects are still uncertain. Finding out its utility, mechanism and improvement on green economy may accelerate green development. In this paper, Slack Based Measure model is used to obtain original results, Super-Efficiency model is used to sort effective decision-making units for stronger efficient frontier and Minimum Distance to Strong Efficient Frontier model is used to narrow gaps between non-effective ones and real situations. Then Global Malmquist-Lunberger index makes results dynamisation. Samples of 51 countries joining the Belt and Road Initiative from 2008 to 2022 are used in above-mentioned models to portray green economic dynamics. Then utility, mechanism and improvement of green investment transformation on green economy are studied through econometric model. The findings show that (i) Green Belt and Road Initiative makes green economic development more stable. The standard deviation decreases by 96.53% and mean maintains in 1.5. However, disconnection between a 36.36% increase of pure technological change and a 24.83% decline of its scale effect inhibits technical advance. (ii) Share of countries obtaining green scale revenues reaches 56.86%, which realizes a 52.64% increase. Furthermore, gaps between countries with positive status and those with negative status narrow 68.42%. Positive group accounts for 50% in developed countries and 46.15% in developing countries. (iii) Performance of Green Belt and Road Initiative is better than the Belt and Road Initiative. A one standard deviation increase in green investment transformation increases green economic development by 0.2705 (0.2105), which is a 18.57% (14.45%) increase relative to average green economic development of 1.457. Former's strengths also reflect in different quantiles, lagging effect and heterogeneity analysis. (iv) Green investment transformation of Green Belt and Road Initiative broadens more reliable mechanism (Promote Innovation - Strict Regulation - Ensure Commercialization) based on original one (Improve Efficiency - Decrease Costs - Increase Revenues) of the Belt and Road Initiative. (v) For the green investment transformation with government subsidies, property rights protection, investment environment stability and exchange cooperation, magnitudes of its effects on green economic development have significant increases by 25.03%, 31.77%, 8.01% and 10.12% respectively. The findings not only help understand green economic status, but also support some policy insights for achieving green economy by discovering utility, mechanism and improvement of green investment transformation.

Production, Recycling and Economy of Palladium: A Critical Review.

Platinum group metals (PGMs), including palladium, play a pivotal role in various industries due to their unique properties. Palladium is frequently employed in technologies aimed at environmental preservation, such as catalytic converters that reduce harmful emissions from vehicles, and in the production of clean energy, notably in the hydrogen evolution process. Regrettably, the production of this vital metal for our environment is predominantly centered in two countries-Russia and South Africa. This centralization has led to palladium being classified as a critical raw material, emphasizing the importance of establishing a secure and sustainable supply chain, as well as employing the most efficient methods for processing materials containing palladium. This review explores techniques for palladium production from primary sources and innovative recycling methods, providing insights into current technologies and emerging approaches. Furthermore, it investigates the economic aspects of palladium production, including price fluctuations influenced by emission regulations and electric vehicle sales, and establishes connections between palladium prices, imports from major producers, as well as copper and nickel prices, considering their often co-occurrence in ores.

The Russian Economy under the Impact of the Pandemic Crisis.

The main channels of influence of the new coronavirus infection pandemic on the economy are analyzed. The key features of the economic crisis caused by the pandemic are emphasized, the scale and depth of the economic decline largely depending on the actions of the authorities to restrict economic activity. It has been stated that as the pandemic crisis developed, the governments of the largest countries of the world adapted to its negative consequences for the economy, which was reflected in a decrease in the dependence of economic activity on the incidence of COVID-19. The effectiveness of economic support measures implemented in Russia and key countries of the world during the crisis is assessed. The failures of market self-regulation during the crisis, which led to a significant imbalance of supply and demand in world markets, are considered. Along with the success of the Russian government in reducing the negative impact of the pandemic on the economy, attention is drawn to the serious social and demographic damage that our country has suffered as a result of the pandemic. The main trends for compensating for losses are formed, and the medium- and long-term potential for the development of the Russian economy after the pandemic crisis is assessed. This article is an amended and updated version of the author's report at the Scientific Session of the RAS General Meeting on December 15, 2021.

Strategies for Socioeconomic Development with Low Greenhouse Gas Emissions: Scenarios and Realities for Russia.

This article is a supplemented and updated version of the report at the meeting of the Presidium of the Russian Academy of Sciences with the participation of the leadership of the Russian Ministry of Economic Development on September 21, 2021. The authors analyze the main opportunities and risks of implementing the Strategy for the Socioeconomic Development of the Russian Federation with Low Greenhouse Gas Emissions until 2050. The key role of the global climate agenda, determined by the leading countries of the world, primarily the European Union, in shaping the institutional environment that influences decision making in the field of national economic policy, is emphasized. It is argued that there is no automatic positive relationship between the race for so-called carbon neutrality of the economy by 2050, prescribed by the global climate agenda, and the achievement of the sustainable development goals set by the United Nations. Principles and approaches to reduce the risks of decarbonization of the economy are formulated. These provide for the integration of a set of measures to reduce net greenhouse gas emissions with those to adapt communities and economic systems to climate change, and harmonize the measures above with the national goals of long-term sustainable development. Estimates of the economic effects of implementation of various scenarios of the decarbonization of the national economy and the associated risks of the global energy transition for Russia are introduced.

Seasonal and Secular Periodicities Identified in the Dynamics of US FDA Medical Devices (1976-2020): Portends Intrinsic Industrial Transformation and Independence of Certain Crises.

The US Food and Drug Administration (FDA) regulates medical devices (MD), which are predicated on a concoction of economic and policy forces (e.g., supply/demand, crises, patents), under primarily two administrative circuits: premarketing notifications (PMN) and Approvals (PMAs). This work considers the dynamics of FDA PMNs and PMAs applications as an proxy metric for the evolution of the MD industry, and specifically seeks to test the existence [and, if so, identify the length scale(s)] of economic/business cycles. Beyond summary statistics, the monthly (May, 1976 to December, 2020) number of observed FDA MD Applications are investigated via an assortment of time series techniques (including: discrete wavelet transform, running moving average filter, complete ensemble empirical mode with adaptive noise decomposition, and Seasonal Trend Loess decomposition) to exhaustively seek and find such periodicities. This work finds that from 1976 to 2020, the dynamics of MD applications are (1) non-normal, non-stationary (fractional order of integration < 1), non-linear, and strongly persistent (Hurst > 0.5); (2) regular (non-variance), with latent periodicities following seasonal, 1-year (short-term), 5-6 year (Juglar; mid-term), and a single 24-year (Kuznets; medium-term) period (when considering the total number of MD applications); (3) evolving independently of any specific exogenous factor (such as the COVID-19 crisis); (4) comprised of two inversely opposing processes (PMNs and PMAs) suggesting an intrinsic structural industrial transformation occurring within the MD industry; and, (6) predicted to continue its decline (as a totality) into the mid-2020s until recovery. Ramifications of these findings are discussed.

Observando o desenvolvimento regional do Vale do Rio Pardo: notas sobre as dinâmicas econômicas recentes / Observing the regional development of the Pardo River Valley: notes on recent economic dynamics / Observando el desarrollo regional del Vale do Rio Pardo: notas sobre las dinámicas económicas recientes

Este artigo aborda as dinâmicas econômicas recentes da região do Vale do Rio Pardo, localizada na área central do Rio Grande do Sul, alisando as relações com o desenvolvimento regional. Nesse sentido, buscou-se analisar as seguintes variáveis para a compreensão do desenvolvimento dessa região em sua dimensão econômica: PIB, VAB, Empregos, Exportações, PIB per capita, Gini, Estrutura Fundiária, Produção Agrícola e IDESE, para melhor compreender o desenvolvimento territorial do Corede VRP. Os resultados apontam que a região ainda permanece vinculada fortemente à produção e transformação de tabaco, embora tenha havido um aumento importante na área e na produção de soja. Também se verifica a manutenção da desigualdade espacial na distribuição da atividade econômica no conjunto do território regional e da sua concentração na área central da região, notadamente no município de Santa Cruz do Sul, polo econômico regional.(AU)

This article discusses the recent economic dynamics of the Vale do Rio Pardo region, located in the central area of Rio Grande do Sul, smoothing relations with regional development. In this sense, we aimed to analyze the following variables to understand the development of this region in its economic dimension: GDP, GVA, Employment, Exports, GDP per capita, Gini, Land Structure, Agricultural Production and IDESE, to better understand territorial development of Corede VRP. The results indicate that the region still remains strongly linked to the production and processing of tobacco, although there has been a significant increase in the area and in the production of soybeans. It is also verified the maintenance of spatial inequality in the distribution of economic activity in the region as a whole and its concentration in the central area of the region, especially in the municipality of Santa Cruz do Sul, regional economic hub.(AU)

Este artículo aborda las dinámicas económicas recientes de la región del Vale do Rio Pardo, ubicada en el área central de Rio Grande do Sul, alisando las relaciones con el desarrollo regional. En este sentido, se buscó analizar las siguientes variables para la comprensión del desarrollo de esa región en su dimensión económica: PIB, VAB, Empleos, Exportaciones, PIB per cápita, Índice de Gini, Estructura Fundiaria, Producción Agrícola e IDESE, para comprender mejor el desarrollo territorial del Corede VRP. Los resultados apuntan que la región sigue siendo vinculada fuertemente a la producción y transformación de tabaco, aunque ha habido un importante aumento en el área y en la producción de soja. También se verifica el mantenimiento de la desigualdad espacial en la distribución de la actividad económica en el conjunto del territorio regional y de su concentración en el área central de la región, notadamente en el municipio de Santa Cruz do Sul, polo económico regional.(AU)

Criterion of Existence of Power-Law Memory for Economic Processes.

In this paper, we propose criteria for the existence of memory of power-law type (PLT) memory in economic processes. We give the criterion of existence of power-law long-range dependence in time by using the analogy with the concept of the long-range alpha-interaction. We also suggest the criterion of existence of PLT memory for frequency domain by using the concept of non-integer dimensions. For an economic process, for which it is known that an endogenous variable depends on an exogenous variable, the proposed criteria make it possible to identify the presence of the PLT memory. The suggested criteria are illustrated in various examples. The use of the proposed criteria allows apply the fractional calculus to construct dynamic models of economic processes. These criteria can be also used to identify the linear integro-differential operators that can be considered as fractional derivatives and integrals of non-integer orders.