Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 419
Filtrar
1.
PLoS One ; 19(4): e0300734, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38662660

RESUMEN

To encourage technological and industrial innovation, nations worldwide implement "re-industrialization" and "manufacturing return." This study investigates the relationship between GDP growth, expenditure on research and development, and medium- to high-tech as a percentage of manufactured exports on technological innovation in Pakistan. We evaluated long-run and short-run causal relationships using the ARDL, bound-F test, and ECM regression. The study found a positive relationship between GDP growth and technological innovation in the short and long run. In the short run, with a one-year lag, the analysis reveals a positive and statistically significant relationship between technological innovation, medium-high-tech exports, and GDP growth. In the long run, R&D is positive and significant, while economic growth and technological innovation are positive but not statistically significant. There is a 0.38 percent chance that exogenous shocks will eventually lead to equilibrium in the long run. Based on the findings of this study, it is recommended to allocate resources to research and development, promoting collaborative initiatives, ensuring intellectual property rights, and developing a skilled workforce.


Asunto(s)
Desarrollo Económico , Invenciones , Tecnología , Pakistán , Invenciones/economía , Tecnología/economía , Humanos , Desarrollo Industrial
2.
Nature ; 626(7997): 45-57, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38297170

RESUMEN

The linear production and consumption of plastics today is unsustainable. It creates large amounts of unnecessary and mismanaged waste, pollution and carbon dioxide emissions, undermining global climate targets and the Sustainable Development Goals. This Perspective provides an integrated technological, economic and legal view on how to deliver a circular carbon and plastics economy that minimizes carbon dioxide emissions. Different pathways that maximize recirculation of carbon (dioxide) between plastics waste and feedstocks are outlined, including mechanical, chemical and biological recycling, and those involving the use of biomass and carbon dioxide. Four future scenarios are described, only one of which achieves sufficient greenhouse gas savings in line with global climate targets. Such a bold system change requires 50% reduction in future plastic demand, complete phase-out of fossil-derived plastics, 95% recycling rates of retrievable plastics and use of renewable energy. It is hard to overstate the challenge of achieving this goal. We therefore present a roadmap outlining the scale and timing of the economic and legal interventions that could possibly support this. Assessing the service lifespan and recoverability of plastic products, along with considerations of sufficiency and smart design, can moreover provide design principles to guide future manufacturing, use and disposal of plastics.


Asunto(s)
Contaminación Ambiental , Objetivos , Plásticos , Reciclaje , Desarrollo Sostenible , Biomasa , Dióxido de Carbono/análisis , Dióxido de Carbono/química , Dióxido de Carbono/metabolismo , Contaminación Ambiental/economía , Contaminación Ambiental/legislación & jurisprudencia , Contaminación Ambiental/prevención & control , Contaminación Ambiental/estadística & datos numéricos , Combustibles Fósiles , Calentamiento Global/prevención & control , Gases de Efecto Invernadero/análisis , Plásticos/síntesis química , Plásticos/economía , Plásticos/metabolismo , Plásticos/provisión & distribución , Reciclaje/economía , Reciclaje/legislación & jurisprudencia , Reciclaje/métodos , Reciclaje/tendencias , Energía Renovable , Desarrollo Sostenible/economía , Desarrollo Sostenible/legislación & jurisprudencia , Desarrollo Sostenible/tendencias , Tecnología/economía , Tecnología/legislación & jurisprudencia , Tecnología/métodos , Tecnología/tendencias
3.
Science ; 382(6669): eadl0654, 2023 10 27.
Artículo en Inglés | MEDLINE | ID: mdl-37883575

RESUMEN

Climate change poses severe impacts on and risks to agriculture, food, and nutrition, particularly for smallholders. Agricultural researchers are tasked with deciphering interconnected variables-from soil characteristics and nutrient cycles to water and biodiversity-to create a robust framework for technological advancements. Increasing sustainability, resilience, and productivity is an urgent need that requires approaches to research and innovation tailored to both regional and country-specific challenges. One compelling model of regional collaboration is FONTAGRO, the Regional Fund for Agricultural Technology, which for 25 years has combined public and private institutions in supporting science, technology, and innovation within the agrifood sector in Latin American and the Caribbean. The science-based evidence that emerges is strategic not only for its local application but also for its potential in other regions of the world and capacity to accelerate the transformation of agrifood systems.


Asunto(s)
Agricultura , Tecnología , Agricultura/economía , Región del Caribe , Inversiones en Salud , América Latina , Tecnología/economía
4.
Environ Sci Pollut Res Int ; 30(37): 87628-87644, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37428314

RESUMEN

Green technology innovation is a crucial step in China's transition towards a green economy and has received substantial financial support through green finance. However, China's efficacy in using green finance to serve enterprise green technology innovation is still at an exploratory stage. This study takes the 2017 policy of the Chinese government on "Green Finance Reform and Innovation Pilot Zones" as a quasi-natural experiment and constructs a difference-in-difference model to examine the impact of green finance on enterprise green technology innovation. The research results reveal that green financial policies significantly promote green technology innovation and have an incentive effect on the application of green invention patents and green utility model patents, with this conclusion being robust. This is particularly true for large-scale enterprises, state-owned enterprises, and non-heavy polluting enterprises. Compared to large-scale enterprises, state-owned enterprises, and non-heavy-polluting enterprises are more inclined to apply for green invention patents. Inspection of influence mechanisms suggests that green finance policies alleviate financing constraints and signaling effect to improve enterprises' green innovation, whereas external market supervision is ineffective. Based on empirical results, relevant policy suggestions are proposed to help green finance better serve enterprises' green innovation.


Asunto(s)
Política Fiscal , Invenciones , Desarrollo Sostenible , Tecnología , China , Gobierno , Desarrollo Sostenible/economía , Tecnología/economía
5.
Health Econ ; 31(6): 1184-1201, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35362244

RESUMEN

This study measures the increment of health care expenditure (HCE) that can be attributed to technological progress and change in medical practice by using a residual approach and microdata. We examine repeated cross-sections of individuals experiencing an initial health shock at different point in time over a 10-year window and capture the impact of unobservable technology and medical practice to which they are exposed after allowing for differences in health and socioeconomic characteristics. We decompose the residual increment in the part that is due to the effect of delaying time to death, that is, individuals surviving longer after a health shock and thus contributing longer to the demand of care, and the part that is due to increasing intensity of resource use, that is, the basket of services becoming more expensive to allow for the cost of innovation. We use data from the Danish National Health System that offers universal coverage and is free of charge at the point of access. We find that technological progress and change in medical practice can explain about 60% of the increment of HCE, in line with macroeconomic studies that traditionally investigate this subject.


Asunto(s)
Gastos en Salud , Tecnología/economía , Tecnología/tendencias , Factores de Edad , Estudios Transversales , Dinamarca , Humanos , Morbilidad , Factores Socioeconómicos
7.
PLoS One ; 16(12): e0261343, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34914775

RESUMEN

Universities are important sources of knowledge and key members of the regional innovation system. The key problem in Chinese universities is the low efficiency of the scientific and technological (S&T) transformation, which limits the promotion of regional innovation and economic development. This article proposes the three-stage efficiency analytical framework, which regards it as a complex and interactive process. Avoiding the problem of considering the input and output of university S&T transformation as a "black box" and neglecting the links among different transformation stages. The super efficiency network SBM model is applied to the heterogeneous region of the Yangtze River Economic Belt. Empirical research proves that university S&T transformation has not been effectively improved and the scientific resources invested in universities have not been efficiently utilized in recent years. Generally, Despite the correlation between regional economy and transformation efficiency, the exclusive increase in resources is not enough. Regional openness and the quality of research talents are key factors for the application of technological innovation and technology marketization. Universities should not only pursue the number of research outputs but pay more attention to high-quality knowledge production to overcome difficulties in research achievements transformation.


Asunto(s)
Investigación Biomédica Traslacional/economía , Investigación Biomédica Traslacional/tendencias , Universidades/tendencias , China , Desarrollo Económico/tendencias , Eficiencia , Humanos , Invenciones/economía , Inversiones en Salud , Conocimiento , Ríos , Desarrollo Sostenible/tendencias , Tecnología/economía , Tecnología/tendencias , Universidades/economía
8.
PLoS One ; 16(12): e0261589, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34936690

RESUMEN

Firm's effort on Green technology innovation (hereafter, called G-innovation) is affected by financing constraints, and firm will make a discretionary choice according to its own situation, to achieve the maximization of self-interests. Based on the data of Chinese micro enterprises, firstly, we empirically analyze firms' decision-making towards G-innovation when faced with financing constraints. It supports the view that financing constraints can hinder enterprise technological innovation. And we also make an explanation that the social benefits of green technology innovation are greater than personal benefits, which makes enterprises tend to reduce green technology innovation when facing financing constraints. Then we examine firms' heterogonous behaviors under different internal attributes and external environments. The results reveal that: First, firms are reluctant to pay more efforts to G-innovation when faced with increased financing constraints. Second, firms with different attributes exhibit heterogeneous G-innovation. Political connections will change firms' willingness to innovate, while the structure of property rights and the pollution degree will not. Third, firms under different external environment also exhibit heterogeneous G-innovation. When economic policy uncertainty increases, firms' willingness to innovate weakens. The development of shadow banks fail to improve firm's willingness to innovate.


Asunto(s)
Invenciones , China , Conservación de los Recursos Naturales/economía , Contaminación Ambiental/economía , Invenciones/economía , Investigación/economía , Tecnología/economía
10.
PLoS One ; 16(11): e0259875, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34793499

RESUMEN

The work develops and investigates a mathematical model for evolution of the technological structure of an economic system where different technologies compete for the common essential resources. The model is represented by a system of consumer-resource rate equations. Consumers are technologies formalized as populations of weakly differentiated firms producing a similar commodity with like average output. Firms are characterized by the Leontief-Liebig production function in stock-flow representation. Firms self-replicate with a rate proportional to production output of the respective technology and dissolve with a constant rate of decay. The resources are supplied to the system from outside and consumed by concerned technologies; the unutilized resource amounts are removed elsewhere. The inverse of a per firm break-even resource availability is proposed to serve as a measure for competitiveness towards a given resource. The necessary conditions for coexistence of different technologies are derived, according to which each contender must be a superior competitor for one specific resource and an inferior competitor for the others. The model yields a version of the principle of competitive exclusion: in a steady state, the number of competing technologies cannot exceed the number of limiting resources. Competitive outcomes (either dominance or coexistence) in the general system of multiple technologies feeding on multiple essential resources are shown to be predictable from knowledge of the resource-dependent consumption and growth rates of each technological population taken alone. The proposed model of exploitative competition with explicit resource dynamics enables more profound insight into the patterns of technological change as opposed to conventional mainstream models of innovation diffusion.


Asunto(s)
Conducta Competitiva , Modelos Económicos , Tecnología , Difusión de Innovaciones , Humanos , Tecnología/economía , Tecnología/tendencias
11.
PLoS One ; 16(8): e0255698, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34415930

RESUMEN

Global value chains are formed through value-added trade, and some regions promote economic integration by concluding regional trade agreements to promote these chains. However, it has not been established to quantitatively assess the scope and extent of economic integration involving various sectors in multiple countries. In this study, we used the World Input-Output Database to create a cross-border sector-wise network of trade in value-added (international value-added network) covering the period of 2000-2014 and evaluated them using network science methods. By applying Infomap to the international value-added network, we confirmed two regional communities: Europe and the Pacific Rim. We applied Helmholtz-Hodge decomposition to the value-added flows within the region into potential and circular flows, and clarified the annual evolution of the potential and circular relationships between countries and sectors. The circular flow component of the decomposition was used to define an economic integration index. Findings confirmed that the degree of economic integration in Europe declined sharply after the economic crisis in 2009 to a level lower than that in the Pacific Rim. The European economic integration index recovered in 2011 but again fell below that of the Pacific Rim in 2013. Moreover, sectoral economic integration indices suggest what Europe depends on Russia in natural resources makes the European economic integration index unstable. On the other hand, the indices of the Pacific Rim suggest the steady economic integration index of the Pacific Rim captures the stable global value chains from natural resources to construction and manufactures of motor vehicles and high-tech products.


Asunto(s)
Comercio/economía , Cooperación Internacional , Industria Manufacturera/economía , Recursos Naturales , Tecnología/economía , Australia , Canadá , China , Humanos , México , República de Corea , Federación de Rusia , Estados Unidos
12.
PLoS One ; 16(6): e0252669, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34170909

RESUMEN

Although R&D internationalization plays an important role in enterprises' globalization, few studies explore the mechanism of R&D internationalization and emerging market companies' innovation, or the relationship between R&D internationalization, domestic technology alliances and absorptive capacity. How does the R&D internationalization of emerging market enterprises affect the innovation of those enterprises? Under fierce market competition, do absorption capacity and domestic technology alliances have a significant impact on enterprise innovation? From the perspective of the knowledge-based view, this paper studies 185 enterprises undergoing R&D internationalization in China from 2012 to 2017, using high-dimensional Poisson fixed effects model, we use instrumental (HDFE IV) estimation to explain the impact of R&D internationalization on the innovation of the parent company and the mechanism behind it. The study finds that R&D internationalization positively promotes the parent company's innovation, and domestic technology alliances and absorptive capacity play a partial mediator role in R&D internationalization. In the face of fierce market competition, domestic technical alliances play a significant role in promoting enterprise innovation, while absorptive capacity plays a negative role in promoting enterprise innovation with the moderating effect of market competition.


Asunto(s)
Algoritmos , Difusión de Innovaciones , Desarrollo Económico/estadística & datos numéricos , Industrias/economía , Modelos Teóricos , Tecnología/economía , China , Industrias/métodos , Industrias/organización & administración , Internacionalidad , Invenciones/economía , Instalaciones Industriales y de Fabricación/economía , Instalaciones Industriales y de Fabricación/organización & administración , Mercadotecnía/economía , Mercadotecnía/métodos , Mercadotecnía/organización & administración , Tecnología/métodos
14.
Chest ; 160(1): 259-267, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33581100

RESUMEN

Advanced interventional pulmonary procedures of the airways, pleural space, and mediastinum continue to evolve and be refined. Health care, finance, and clinical professionals are challenged by both the indications and related coding complexities. As the scope of interventional pulmonary procedures expands with advanced technique and medical innovation, program planning and ongoing collaboration among clinicians, finance executives, and reimbursement experts are key elements for success. We describe advanced bronchoscopic procedures, appropriate Current Procedural Terminology coding, valuations, and necessary modifiers to fill the knowledge gap between basic and advanced procedural coding. Our approach is to balance the description of procedures with the associated coding in a way that is of use to the proceduralist, the coding specialist, and other nonclinical professionals.


Asunto(s)
Broncoscopía/métodos , Neoplasias Pulmonares/diagnóstico , Mecanismo de Reembolso , Tecnología/economía , Broncoscopía/economía , Humanos , Neoplasias Pulmonares/economía
15.
PLoS One ; 16(1): e0245891, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33493180

RESUMEN

In recent times, China has emphasized five major development concepts to promote high-quality development: coordination, green, innovation, openness, and sharing. As a metamorphosis of these ideas, Chinese science and technology parks (STPs) are gathering areas of high-tech industries and represent advanced productive forces. Their greenness, openness, and innovative developments herald the future development trends of China. Based on the data of 52 STPs in China from 2011 to 2018, this study analyzes the impact of foreign direct investment (FDI) quantity and quality on the low-carbon development of the STPs. We use Hansen's nonlinear panel threshold regression model with knowledge accumulation as the threshold variable. The results show the following: First, there are complex nonlinear relationships between FDI quantity, FDI quality, and the low-carbon development of the STPs. Second, FDI quantity has a significant positive impact on the low-carbon development of the STPs only when the level of knowledge accumulation is below a certain threshold. Beyond this threshold the effect is no longer significant. Third, FDI quality has a significant positive impact on the low-carbon development of STPs only when the level of knowledge accumulation is lower than a certain threshold; beyond which, the impact is no longer significant. These results can serve as a reference for China to effectively promote economic low-carbon growth of STPs and achieve green, open, and innovative development.


Asunto(s)
Dióxido de Carbono/análisis , Internacionalidad , Inversiones en Salud/estadística & datos numéricos , Ciencia/economía , Desarrollo Sostenible/economía , Tecnología/economía , Políticas
16.
Artículo en Inglés | MEDLINE | ID: mdl-33316957

RESUMEN

After the economy enters a "new normal" era in China, resource-based cities are under pressure in terms of transformation, upgrading and sustainable development. This paper uses the panel data of 33 resource-based cities from 2008 to 2018 to empirically analyze the impact of environmental regulation and innovation compensation on scientific and technological competitiveness. The results show that there is a positive U-shaped relation between environmental regulation and scientific and technological competitiveness. This means that when environmental regulations exceed a certain level, continuing to increase regulations will significantly enhance technological competitiveness, but most samples are still on the left side of the turning point. At the same time, the labor productivity and fiscal capacity of non-agricultural industries in the region may have a strong regulatory effect. In a region with higher labor productivity in non-agricultural industries or stronger local fiscal capacity, environmental regulation is more likely to reflect the attribute of "innovation compensation" and advance scientific and technological competitiveness. At this stage, we should optimize the trans-regional compensation mechanism for resource-rich regions, increase investment in pollution management and ecological protection and impose stricter admission standards on industrial projects. Besides, skilled laborers should be cultivated and innovation and entrepreneurship be supported to realize the green and sustainable development of resource-based cities in the new era.


Asunto(s)
Competencia Económica , Contaminación Ambiental , Industrias , Tecnología , China , Ciudades , Competencia Económica/estadística & datos numéricos , Contaminación Ambiental/legislación & jurisprudencia , Regulación Gubernamental , Industrias/economía , Industrias/legislación & jurisprudencia , Tecnología/economía , Tecnología/legislación & jurisprudencia
17.
PLoS One ; 15(12): e0242676, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33270658

RESUMEN

Adoption of a new technology depends on many factors. Marketing, advertising, social interactions, and personal convictions are relevant features when deciding to adopt, or not, a new technology. Thus, it is very important to determine the relative weight of these factors when introducing a new technology. Here we discuss an agent based model to investigate the behavior of agents exposed to advertising and social contacts. Agents may follow the social pressure, or maybe contrarians, acting against the majority, to decide if they adopt or not a new technology. First, we solve analytically the model that relies on the above quoted factors. Then, we compare the theoretical results with empirical data concerning the adoption of innovations by American households during the 20th century. The analysis of the diffusion dynamics process is done either for the whole period, or by periods based on the so-called technical-economic paradigms, according to Freeman and Perez. Three different periods are considered: before 1920, from 1920 to 1970, and after 1970. We study the evolution of the model parameters for each technical-economic period. Finally, by adjusting the key parameters we are able to collapse all the data into a universal curve that describes all the adoption processes.


Asunto(s)
Tecnología , Conducta , Difusión de Innovaciones , Composición Familiar , Modelos Teóricos , Tecnología/economía , Factores de Tiempo , Estados Unidos
18.
Artículo en Inglés | MEDLINE | ID: mdl-33255740

RESUMEN

Studying the driving factors of environmental pollution is of great importance for China. Previous literature mainly focused on the cause of national aggregate emission changes. However, research about the effect of fiscal expenditures on science and technology (FESTs) on environmental pollution is rare. Considering the large gap among cities in China, it is necessary to investigate whether and how FESTs affect environmental pollution among cities. We adopted three kinds of typical environmental pollutants including sulfur dioxide (SO2) emissions, wastewater emission, and atmospheric particulate matter less than 2.5 micrometers in diameter (PM2.5). Using the data of 260 prefecture-level cities over ten years in China, we found that FESTs play a significantly positive role in reducing sulfur dioxide (SO2) emissions and PM2.5 concentrations, but fail to alleviate wastewater emissions. Specifically, for every 1% increase in FESTs, SO2 emissions were reduced by 5.317% and PM2.5 concentrations were reduced by 5.329%. Furthermore, we found that FESTs reduced environmental pollution by impeding fixed asset investments and by promoting research and development activities (R&D). Moreover, the impacts of FESTs on environmental pollution varied across regions and sub-periods. Our results are robust to a series of additional checks, including alternative econometric specifications, generalized method of moments (GMM) analysis and overcoming potential endogeneity with an instrumental variable. Our findings confirm that government efforts can be effective on pollution control in China. Hence, all governments should pay more attention to FESTs for sustainable development and environmental quality improvements.


Asunto(s)
Monitoreo del Ambiente , Contaminación Ambiental , Gastos en Salud , Ciencia , Tecnología , Contaminantes Atmosféricos/análisis , Contaminación del Aire/análisis , China , Monitoreo del Ambiente/economía , Contaminación Ambiental/economía , Gastos en Salud/estadística & datos numéricos , Material Particulado/análisis , Ciencia/economía , Tecnología/economía
20.
PLoS One ; 15(11): e0242412, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33237920

RESUMEN

This study evaluates the impacts of renewable energy, environmental taxes, environmental technology, and financial development on carbon emissions in OECD economies from 1995 to 2015 by employing system-GMM and quantile regression approaches. Our empirical analysis indicates that environmental tax negatively affects carbon emissions; economic growth impedes environmental quality by increasing carbon emissions. Further, renewable energy consumption, environmental technology, and financial development improve environmental quality by decreasing carbon emissions. We suggest that changes in policymaking to promote sustainable economic growth and environmental quality should be prevent environmental degradation, but also inspire greater investments in new technologies and energy expertise in the renewables industry.


Asunto(s)
Huella de Carbono , Conservación de los Recursos Naturales/economía , Desarrollo Económico , Política Ambiental , Energía Renovable , Crecimiento Sostenible , Impuestos , Tecnología/economía , Dióxido de Carbono , Cambio Climático , Gases de Efecto Invernadero , Invenciones/economía , Inversiones en Salud , Modelos Econométricos , Energía Renovable/economía
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...