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1.
Heliyon ; 10(12): e32750, 2024 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-38975216

RESUMO

Objectives: To evaluate the impact of pay-for-performance on antimicrobial consumption and antimicrobial expenditure in a large teaching hospital in Guangzhou, China. Methods: We collected data from hospital information system from January 2018 through September 2022 in the inpatient wards. Antimicrobial consumption was evaluated using antibiotic use density (AUD) and antibiotic use rate (AUR). The economic impact of intervention was assessed by antimicrobial expenditure percentage. The data was analyzed using interrupted time series (ITS) analysis. Results: Following the implementation of the intervention, immediate decreases in the level of AUD were observed in Department of Hematology Unit 3 (ß = -66.93 DDDs/100PD, P = 0.002), Urology (ß = -32.80 DDDs/100PD, P < 0.001), Gastrointestinal Surgery Unit 3 (ß = -11.44 DDDs/100PD, P = 0.03), Cardiac Surgery (ß = -14.30 DDDs/100PD, P = 0.01), ICU, Unit 2 (ß = -81.91 DDDs/100PD, P = 0.02) and Cardiothoracic Surgery ICU (ß = -41.52 DDDs/100PD, P = 0.05). Long-term downward trends in AUD were also identified in Organ Transplant Unit (ß = -1.64 DDDs/100PD, P = 0.02). However, only Urology (ß = -6.56 DDDs/100PD, P = 0.02) and Gastrointestinal Surgery Unit 3 (ß = -8.50 %, P = 0.01) showed an immediate decrease in AUR, and long-term downward trends in AUR were observed in Pediatric ICU (ß = -1.88 %, P = 0.05) and ICU Unit 1 (ß = -0.55 %, P = 0.02). Conclusion: This study demonstrates that the adoption of pay-for-performance effectively reduces antibiotic consumption in specific departments of a hospital in Guangzhou in the short term. However, it is important to recognize that the long-term impact of such interventions is often limited. Additionally, it should be noted that the overall effectiveness of the intervention across the entire hospital was not significant.

2.
Appetite ; 200: 107555, 2024 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-38878902

RESUMO

This study used mixed methods to explore the impact of front-of-package health claims and bonus pack messages on consumer evaluations. First, a comprehensive audit of cereal box packages at the world's largest retailer examined how these messages are presented in practice. It was found that negative claims are more frequent and positive claims are less frequent on products with a bonus pack message compared to those without. A subsequent experiment investigated how combinations of health claims and bonus pack messages influence consumer evaluations. It also found that health claims significantly influenced consumer preferences, while bonus pack messages diminished perceptions of food healthiness but increased perceived value. Pairing positive health claims with bonus pack messages, such as "Family Size," improved perceptions of healthiness. Moreover, positive health claims made products seem of lower value, whereas negative health claims did not affect perceived value. Health claims negatively affected value perceptions, even when paired with bonus pack messages like "Large Size." However, the negative effect of health claims on tastiness perceptions was mitigated with "Large Size". The study underscores the complexity of consumer decision-making, and offer insights for food marketers, emphasizing the need of a strategic approach in crafting health-related messaging and promotional strategies for product packaging.


Assuntos
Comportamento de Escolha , Comportamento do Consumidor , Rotulagem de Alimentos , Embalagem de Alimentos , Preferências Alimentares , Humanos , Feminino , Masculino , Adulto , Rotulagem de Alimentos/métodos , Preferências Alimentares/psicologia , Embalagem de Alimentos/métodos , Adulto Jovem , Pessoa de Meia-Idade , Promoção da Saúde/métodos , Percepção , Adolescente , Dieta Saudável/psicologia , Paladar
3.
Ecol Lett ; 27(2): e14391, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38400769

RESUMO

Current rates of climate change are exceeding the capacity of many plant species to track climate, thus leading communities to be in disequilibrium with climatic conditions. Plant canopies can contribute to this disequilibrium by buffering macro-climatic conditions and sheltering poorly adapted species to the oncoming climate, particularly in their recruitment stages. Here we analyse differences in climatic disequilibrium between understorey and open ground woody plant recruits in 28 localities, covering more than 100,000 m2 , across an elevation range embedding temperature and aridity gradients in the southern Iberian Peninsula. This study demonstrates higher climatic disequilibrium under canopies compared with open ground, supporting that plant canopies would affect future community climatic lags by allowing the recruitment of less arid-adapted species in warm and dry conditions, but also it endorse that canopies could favour warm-adapted species in extremely cold environments as mountain tops, thus pre-adapting communities living in these habitats to climate change.


Assuntos
Ecossistema , Plantas , Mudança Climática , Madeira , Temperatura
4.
Heliyon ; 10(1): e22748, 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-38163196

RESUMO

Various regions often adopt punish strategies to solve traffic congestion problems. Punishing defectors is an effective strategy to solve the first-order free-rider problem in a public goods game. But this behavior is costly because the punisher is often also involved in the original joint venture and therefore vulnerable, which jeopardizes the effectiveness of this incentive. As an option, we could hire special players whose sole duty would be to monitor the population and punish defectors. The fines collected by various regions will also be used to subsidize the construction of public transportation. Thereby, we derive inspiration, and propose an improved public goods game model based on bonus and mercenary punishment. Research has shown that after cooperator gives the punisher an appropriate bonus, cooperators can strengthen the punisher, thereby weakening the defector's advantage and indirectly promoting cooperation by stabilizing the punisher's position in the system. In addition, the mechanism of reusing the fines collected from defectors and then subsidize to other players in the system can directly promote the emergence of cooperation.

5.
Cells ; 12(22)2023 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-37998364

RESUMO

Gene expression is controlled via complex regulatory mechanisms involving transcription factors, chromatin modifications, and chromatin regulatory factors. Histone modifications, such as H3K27me3, H3K9ac, and H3K27ac, play an important role in controlling chromatin accessibility and transcriptional output. In vertebrates, the Transcriptional Intermediary Factor 1 (TIF1) family of proteins play essential roles in transcription, cell differentiation, DNA repair, and mitosis. Our study focused on Bonus, the sole member of the TIF1 family in Drosophila, to investigate its role in organizing epigenetic modifications. Our findings demonstrated that depleting Bonus in ovaries leads to a mild reduction in the H3K27me3 level over transposon regions and alters the distribution of active H3K9ac marks on specific protein-coding genes. Additionally, through mass spectrometry analysis, we identified novel interacting partners of Bonus in ovaries, such as PolQ, providing a comprehensive understanding of the associated molecular pathways. Furthermore, our research revealed Bonus's interactions with the Polycomb Repressive Complex 2 and its co-purification with select histone acetyltransferases, shedding light on the underlying mechanisms behind these changes in chromatin modifications.


Assuntos
Cromatina , Histonas , Animais , Feminino , Drosophila/metabolismo , Código das Histonas , Histonas/metabolismo , Ovário/metabolismo
6.
JMIR Res Protoc ; 12: e44813, 2023 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-37566448

RESUMO

BACKGROUND: Peers are an important determinant of health and well-being during late adolescence; however, there is limited quantitative research examining peer influence. Previous peer network research with adolescents faced methodological limitations and difficulties recruiting young people. OBJECTIVE: This study aims to determine whether a web-based peer network survey is effective at recruiting adolescent peer networks by comparing 2 strategies for reimbursement. METHODS: This study will use a 2-group randomized trial design to test the effectiveness of reimbursements for peer referral in a web-based cross-sectional peer network survey. Young people aged 16-18 years recruited through Instagram, Snapchat, and a survey panel will be randomized to receive either scaled group reimbursement (the experimental group) or fixed individual reimbursement (the control group). All participants will receive a reimbursement of Aus $5 (US $3.70) for their own survey completion. In the experimental group (scaled group reimbursement), all participants within a peer network will receive an additional Aus $5 (US $3.70) voucher for each referred participant who completes the study, up to a maximum total value of Aus $30 (US $22.20) per participant. In the control group (fixed individual reimbursement), participants will only be reimbursed for their own survey completion. Participants' peer networks are assessed during the survey by asking about their close friends. A unique survey link will be generated to share with the participant's nominated friends for the recruitment of secondary participants. Outcomes are the proportion of a participant's peer network and the number of referred peers who complete the survey. The required sample size is 306 primary participants. Using a multilevel logistic regression model, we will assess the effect of the reimbursement intervention on the proportion of primary participants' close friends who complete the survey. The secondary aim is to determine participant characteristics that are associated with successfully recruiting close friends. Young people aged 16-18 years were involved in the development of the study design through focus groups and interviews (n=26). RESULTS: Participant recruitment commenced in 2022. CONCLUSIONS: A longitudinal web-based social network study could provide important data on how social networks and their influence change over time. This trial aims to determine whether scaled group reimbursement can increase the number of peers referred. The outcomes of this trial will improve the recruitment of young people to web-based network studies of sensitive health issues. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/44813.

7.
Exp Psychol ; 69(4): 226-239, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36475834

RESUMO

Over the past few decades, psychology and its cognate disciplines have undergone substantial scientific reform, ranging from advances in statistical methodology to significant changes in academic norms. One aspect of experimental design that has received comparatively little attention is incentivization, i.e., the way that participants are rewarded and incentivized monetarily for their participation in experiments and surveys. While incentive-compatible designs are the norm in disciplines like economics, the majority of studies in psychology and experimental philosophy are constructed such that individuals' incentives to maximize their payoffs in many cases stand opposed to their incentives to state their true preferences honestly. This is in part because the subject matter is often self-report data about subjective topics, and the sample is drawn from online platforms like Prolific or MTurk where many participants are out to make a quick buck. One mechanism that allows for the introduction of an incentive-compatible design in such circumstances is the Bayesian Truth Serum (BTS; Prelec, 2004), which rewards participants based on how surprisingly common their answers are. Recently, Schoenegger (2021) applied this mechanism in the context of Likert-scale self-reports, finding that the introduction of this mechanism significantly altered response behavior. In this registered report, we further investigate this mechanism by (1) attempting to directly replicate the previous result and (2) analyzing if the Bayesian Truth Serum's effect is distinct from the effects of its constituent parts (increase in expected earnings and addition of prediction tasks). We fail to find significant differences in response behavior between participants who were simply paid for completing the study and participants who were incentivized with the BTS. Per our pre-registration, we regard this as evidence in favor of a null effect of up to V = .1 and a failure to replicate but reserve judgment as to whether the BTS mechanism should be adopted in social science fields that rely heavily on Likert-scale items reporting subjective data, seeing that smaller effect sizes might still be of practical interest and results may differ for items different from the ones we studied. Further, we provide weak evidence that the prediction task itself influences response distributions and that this task's effect is distinct from an increase in expected earnings, suggesting a complex interaction between the BTS' constituent parts and its truth-telling instructions.


Assuntos
Projetos de Pesquisa , Humanos , Teorema de Bayes
8.
Environ Int ; 169: 107508, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36108502

RESUMO

Unprecedented urbanization-induced population migration in China severely affects the scale and geographic distribution of anthropogenic pollutant discharge. Understanding how pollutant discharge patterns respond to population migration can help guide future efforts to maintain water sustainability. Here, based on a new calculation framework with 18 dynamic parameters designed for anthropogenic discharges, we finely tracked and visualized the effects of population migration on the spatial and temporal changes in anthropogenic discharge from 1980 to 2019 in the Minjiang River basin. The results indicate that the increasing effect of population migration on anthropogenic discharges peaked in 2002 and started to contribute to pollutant reduction from 2010 onward. The direct impact of population migration only contributes to the shift of anthropogenic discharges from rural to urban areas, while the migration bonus is the key factor leading to the reduction in anthropogenic discharges. Population migration is highly beneficial for chemical oxygen demand (COD) reduction, which has contributed to a shift from COD to NH4+-N and total phosphorus (TP) as hotspot pollutants in the whole basin (NH4+-N in urban areas and TP in rural areas). Moreover, pollution reduction resulting from the demographic bonus phenomenon has remained limited only to urban areas. Since approximately 2010, the per capita amount and total amount of anthropogenic pollutant discharges in rural areas have exceeded those in urban areas; in particular, the per capita COD and TP discharges in rural areas reached four times those in urban areas. This suggests that future pollution control strategies should give more attention to rural areas and focus on the differentiation and targeting of urban and rural areas.


Assuntos
Poluentes Ambientais , Poluentes Químicos da Água , Monitoramento Ambiental/métodos , Nitrogênio/análise , Fósforo/análise , Rios , Água , Poluentes Químicos da Água/análise
9.
Vaccines (Basel) ; 10(9)2022 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-36146499

RESUMO

BACKGROUND AND PURPOSE: A large number of COVID-19 infections and deaths and the ensuing socioeconomic problems created widespread public fear around COVID-19. Fear around COVID-19 greatly influences people's attitudes towards receiving the COVID-19 vaccines. The purpose of this study is examining (a) the impact of the public fear of COVID-19 (PFC) on the number of COVID-19 vaccinations at the county level; (b) the interaction effect between the PFC and per capita income, unemployment rates, and COVID-19 vaccines incentive policies, on the number of COVID-19 vaccinations at the county level. METHOD: This is a longitudinal analysis across states in the U.S. by using county-level data of 2856 counties from 1 February to 1 July. Random-effects models were adopted to analyze the associations between the PFC and the number of COVID-19 vaccinations. RESULT: the PFC was positively associated with the number of COVID-19 vaccinations at county-level, as PFC increases from 0 to 300, the predicted vaccination number increases from 10,000 to 230,000. However, the associations were divergent when the PFC interacts with county-level per capita income, unemployment rates, and incentive policies. CONCLUSION: public fear is an important indicator for the county-level vaccination numbers of COVID-19. However, it is critical to consider public fear and socioeconomic factors when making policies that aim to increase COVID-19 vaccination rates.

10.
Trop Med Infect Dis ; 7(7)2022 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-35878130

RESUMO

The objectives of this longitudinal study were to analyze the impact of COVID-19 vaccine incentive policies (e.g., bonuses and lottery entries) on county-level COVID-19 vaccination rates, and to examine the interactive effects between COVID-19 vaccine incentive policies and socioeconomic factors on COVID-19 vaccination rates. Using publicly available data, county-level COVID-19 vaccination rates and socioeconomic data between January 2021 and July 2021 were extracted and analyzed across counties in the United States (US)-an analysis of 19,992 observations over time. Pooled ordinary least squares (OLS) analysis was employed to longitudinally examine associations with COVID-19 vaccination rates, and four random-effects models were developed to analyze interaction effects. Bonus incentive policies were effective in counties with a high per capita income, high levels of education, and a high percentage of racial minorities, but not in counties with high unemployment. Lottery incentive policies were effective in counties with a high percentage of racial minorities, but not in counties with high per capita income, high levels of education, and high unemployment. County-level socioeconomic factors should be considered ahead of implementing incentive policies, versus a blanket approach, to avoid the unintentional misuse of economic resources for futile COVID-19 vaccination outcomes.

12.
Heliyon ; 7(9): e08052, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34622059

RESUMO

Leadership in Energy and Environmental Design for Existing Buildings (LEED-EB) version 3 (v3) encourages the recertification of existing buildings by offering them four bonus points ("bonus approach"). This study investigates the influence of a bonus approach on recertification strategies. We analyzed 112 LEED-EB v3 certification-to-recertification office space projects in Washington, DC; Chicago; and New York City. The percentage of average score (PAS) was used to evaluate the difference in certification strategies between (1) gold certification and recertification (with bonus); (2) silver certification and gold recertification (with bonus); (3) gold certification and recertification (without bonus); and (4) silver and gold certification, and gold recertification (combined data from Cases 1-3). In Case 1, recertification showed worse results in the materials and resources (MR), and indoor environmental quality (EQ) categories. In Case 2, recertification showed better results in the water efficiency, and energy and atmosphere categories. In Case 3, certification and recertification showed the same results. We found that recertification of LEED-EB v3 projects with a four-point bonus system resulted in lower results in the MR and EQ categories. This highlights the need to include additional controls in the LEED-EB v3 and v4.1 bonus systems, possibly including a moderate penalty for diminishing achievements in certain categories.

13.
Oral Maxillofac Surg Clin North Am ; 33(4): 505-513, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34364749

RESUMO

The diversity bonus theorem developed by Scott Page postulates that in specific environments, diversity is an absolute necessity to creating the most successful team. The theorem dispels the myth that institutions must choose between diversity and excellence. Within oral and maxillofacial surgery, this bonus is captured through expanded access to care, more equitable and relevant research, and attracting the best and brightest to the specialty. To capture the bonus, oral and maxillofacial surgery must invest in policy changes to admissions and hiring practices, and offer training in communication, cultural competency, and implicit bias.


Assuntos
Diversidade Cultural , Cirurgia Bucal , Humanos
14.
Trends Hear ; 25: 23312165211025941, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34170748

RESUMO

Online recruitment platforms are increasingly used for experimental research. Crowdsourcing is associated with numerous benefits but also notable constraints, including lack of control over participants' environment and engagement. In the context of auditory experiments, these limitations may be particularly detrimental to threshold-based tasks that require effortful listening. Here, we ask whether incorporating a performance-based monetary bonus improves speech reception performance of online participants. In two experiments, participants performed an adaptive matrix-type speech-in-noise task (where listeners select two key words out of closed sets). In Experiment 1, our results revealed worse performance in online (N = 49) compared with in-lab (N = 81) groups. Specifically, relative to the in-lab cohort, significantly fewer participants in the online group achieved very low thresholds. In Experiment 2 (N = 200), we show that a monetary reward improved listeners' thresholds to levels similar to those observed in the lab setting. Overall, the results suggest that providing a small performance-based bonus increases participants' task engagement, facilitating a more accurate estimation of auditory ability under challenging listening conditions.


Assuntos
Percepção da Fala , Percepção Auditiva , Limiar Auditivo , Humanos , Ruído , Recompensa
15.
Front Psychol ; 12: 636756, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34122229

RESUMO

Ingratiation is a common strategy for subordinates to deal with their supervisors in eastern and western societies. Based on the theory of impression management, this study focuses on the impact of upward ingratiation outside the workplace on supervisor's human resource (HR) decisions in the Chinese context and the mechanism behind this impact. The data were collected from 252 supervisor-subordinate dyads in four manufacturing firms. The results demonstrate the following: first, supervisors hold a more favorable view of upward ingratiation outside the workplace; second, upward ingratiation outside the workplace has a positive effect on the supervisor's chance of promotion and bonus allocation decisions, and leader-member exchange (LMX) plays a mediation role in this influence; third, Zhongyong thinking (ZYT) moderates the relationship between LMX and supervisor's chance of promotion and bonus allocation decisions; and finally, ZYT moderates the indirect effect of ingratiation behavior outside the workplace on supervisor's chance of promotion and bonus allocation decisions through LMX, and the mediated relationship is weakened when a supervisor has a higher level of ZYT. This is one of the first empirical studies, which examines the validity of subordinate's upward ingratiation outside the workplace from the perspective of supervisor's ZYT. This study plays an important role in highlighting the effect of ZYT on the ingratiation behavior.

16.
Nat Prod Res ; 35(23): 5484-5488, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32597284

RESUMO

Nine glycosides of patuletin, 6-methoxykaempferol and spinacetin from Good King Henry (Chenopodium bonus-henricus L.) were investigated for neuroprotective, anti-α-glucosidase and lipase activities. All tested flavonoids (100 µM) showed statistically significant neuroprotective activities on isolated rat brain synaptosomes using 6-hydroxydopamine in vitro model. They preserved synaptosome viability as well as the reduced glutathione level. 6-Methoxykaempferol glycoside 9 possessed the most prominent neuroprotective and antioxidant effects, within the same range as silibinin (100 µM). Anti-α-glucosidase and lipase activities of the tested compounds were established by measuring the levels of the released 4-nitrophenol using LC-MS here for the first time. Patuletin glycosides 2 and 7 possessed similar activity to acarbose with IC50 210, 249 and 206 µM, respectively. All flavonoids exhibited prolipase activity and could be used in the treatment of cachexia. The most active were flavonoids, which contain esterified ferulic acid.


Assuntos
Chenopodium , Flavonoides , Animais , Enzimas , Flavonoides/farmacologia , Inibidores de Glicosídeo Hidrolases/farmacologia , Extratos Pancreáticos , Extratos Vegetais , Ratos , alfa-Glucosidases
17.
Energy Policy ; 150: 112117, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36568910

RESUMO

The COVID-19 pandemic has triggered serious economic crises in many countries. In Spain, millions of individuals have been ordered to remain at home and many are unemployed. The increased use of electrical appliances and low incomes make energy poverty highly likely. This study thus analyses the effectiveness of unemployment benefits and social measures to help Spanish family units pay their electricity bill during the COVID-19-induced lockdown in Spain (March-May 2020) and during a hypothetical lockdown in winter and summer. The results showed that the unemployment aids can contribute to alleviating energy poverty, especially if the unemployed individual worked in a poorly-paying job or for just a few hours. However, the social measures were found insufficient to avoid energy poverty. The application of a variable discount percentage in the electricity bill based on income and the month of the year would reduce energy poverty risk during further incidences of lockdown.

18.
Z Naturforsch C J Biosci ; 76(7-8): 261-271, 2021 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-33146631

RESUMO

An ultra-high-performance liquid chromatography - high-resolution mass spectrometry profiling method was used for a comprehensive study of flavonoid and saponin-rich fractions from the aerial parts of wild spinach (Chenopodium bonus-henricus L.). Thirty-six compounds, respectively, 22 saponins of eight sapogenins (phytolaccagenin, bayogenin, medicagenic acid, 2ß-hydroxygypsogenin, 2ß-hydroxyoleanoic acid, 2-hydroxy-30-nor-gypsogenin, 2-hydroxyakebonic acid, and akebonic acid) together with 12 flavonoid glycosides of 6-methoxykaempferol, isorhamnetin, patuletin, spinacetin as well as two ecdysteroids (20-hydroxyecdysone and polypodine B) were detected. The occurrence of sapogenins 2-hydroxy-30-nor-gypsogenin, 2-hydroxyakebonic acid, and akebonic acid in the Chenopodium genus is reported here for the first time. The flavonoid and saponin-rich fractions showed in vitro hepatoprotective and antioxidant activity comparable to those of flavonoid complex silymarin (60 µg/mL) in a model of metabolic bioactivation, induced by CCl4. All tested fractions, compared to silymarin, significantly reduced the cellular damage caused by CCl4 in rat hepatocytes, preserved cell viability and GSH level, decreased LDH leakage, and reduced lipid damage. The results showed that saponin-rich fractions F3A and F3B possessed better hepatoprotective activity than flavonoid-rich fractions (F2A and F2B). The most active was fraction F3B and this is probably due to the synergism between the saponins and some acylated flavonol glycosides found there.


Assuntos
Chenopodium/química , Cromatografia Líquida de Alta Pressão/métodos , Flavonoides/farmacologia , Hepatócitos/efeitos dos fármacos , Espectrometria de Massas/métodos , Componentes Aéreos da Planta/química , Saponinas/farmacologia , Animais , Antioxidantes/farmacologia , Bulgária , Células Cultivadas , Flavonoides/química , Flavonoides/isolamento & purificação , Hepatócitos/metabolismo , Malondialdeído/metabolismo , Estrutura Molecular , Substâncias Protetoras/farmacologia , Ratos , Saponinas/química , Saponinas/isolamento & purificação
19.
Rev. bras. estud. popul ; 38: e0168, 2021. tab, graf
Artigo em Português | LILACS | ID: biblio-1347236

RESUMO

Esse artigo analisa o impacto de política fiscal e de seguridade social em presença de bônus demográfico num modelo de equilíbrio geral dinâmico com agentes se comportando de acordo com a hipótese do ciclo da vida. Permitindo uma estrutura demográfica não estacionária, sob a hipótese do ciclo da vida, o modelo teórico captura o impacto da política fiscal e de seguridade social sobre a distribuição de renda durante a fase de bônus demográfico. O método de análise se baseia em técnicas de economia computacional para simular choques demográficos a partir do equilíbrio estacionário do modelo. O crescimento provisório da parcela da população correspondente aos trabalhadores causa aumento da poupança e redução da taxa de juros. Já o estoque de capital segue uma trajetória em forma de U invertido, tal como sugerido na literatura. A políticas que elevam o grau de contribuição da seguridade social são ferramentas de estímulo ao consumo e à redistribuição da renda em favor dos aposentados. A principal contribuição do artigo é fornecer uma análise das implicações macroeconômicas do bônus demográfico a partir de um modelo teórico com fundamentos microeconômicos para as decisões de consumo e acumulação de ativos.


This paper analyzes the impact of fiscal and social security policies in the presence of demographic bonuses in a dynamic general equilibrium model with life cycle hypothesis. Based on the theoretical framework proposed by Gertler (1999), but allowing a non-stationary demographic structure, the context of the demographic bonus was captured to infer the impact of tax and social security policy on income distribution during the demographic bonus phase. The results of the simulations indicate that the temporary increase in the share of workers in the population generates an increase in savings and a reduction in interest rates, while the behavior of the capital stock in the economy showed that the trajectory is an inverted U shape, as already suggested in the literature. In addition, it was seen that policies increasing the degree of social security contribution are tools to stimulate consumption and income redistribution in favor of retirees. The contribution of the paper is the analysis of macroeconomics implications of a demographic dividend with investment and fully microfounded consumption decisions.


Este artículo analiza el impacto de la política fiscal y previsional ante la presencia de bonos demográficos en un modelo dinámico de equilibrio general con agentes comportándose según la hipótesis del ciclo de vida. Con base en el marco teórico propuesto por Gertler (1999), pero permitiendo una estructura demográfica no estacionaria, se capturó el contexto del bono demográfico para inferir sobre el impacto de la política fiscal y previsional sobre la distribución del ingreso durante la fase del bono demográfico. Los resultados de las simulaciones indican que el aumento temporal de la participación de los trabajadores en la población genera un aumento del ahorro y una reducción de las tasas de interés, mientras que el comportamiento del stock de capital en la economía mostró que la trayectoria es en forma de U invertida, como ya se ha sugerido en la literatura. Además, se observó que las políticas que aumentan el grado de cotización a la seguridad social son herramientas para estimular el consumo y la redistribución del ingreso a favor de los jubilados.


Assuntos
Humanos , Seguridade Social , Características da População , Demografia , Estágios do Ciclo de Vida , Economia , Política Fiscal , Desenvolvimento Sustentável , Fatores Econômicos
20.
An. venez. nutr ; 34(2): 76-83, 2021.
Artigo em Espanhol | LILACS, LIVECS | ID: biblio-1395408

RESUMO

El envejecimiento transforma sustancial y progresivamente la situación de la salud individual, también influye sobre la estructura y la dinámica de la familia y la sociedad. Los niños, mujeres embarazadas y adultos mayores representan los grupos más vulnerables de la población, y ante situaciones de crisis humanitaria su rezago frente a las oportunidades ambientales se profundiza. Aun siendo el foco de atención, los abuelos siempre son los más postergados. Objetivo. Revisar el complejo entorno venezolano, las dimensiones que lo configuran, su impacto en el curso de vida y cómo afecta las condiciones de vida del adulto mayor. Materiales y métodos. Se analizaron los indicadores demográficos; socioeconómicos, como niveles de ingreso, pobreza e hiperinflación, calidad de los servicios públicos; de salud y de seguridad alimentaria y nutricional, inactividad laboral y protección social y cómo afectan las condiciones de vida del adulto mayor. Resultados. Se observaron dimensiones que muestran el impacto negativo en la calidad de vida del adulto mayor, que ahora también debe sortear a la COVID 19, además de enfrentar la orfandad de la acelerada migración de su descendencia, que ha causado la pérdida del bono demográfico y una disminución en la esperanza de vida. Conclusiones. La sistematización del conocimiento de las condiciones de vida de este importante grupo de la población es indispensable para orientar el diseño de políticas públicas dirigidas a su protección que incluya pensiones dignas, atención en salud y cuidados, para que esta población pueda contar con autonomía, independencia y participación en el desarrollo de la nación(AU)


Aging substantially and progressively transforms the individual health situation, it also influences the structure and dynamics of the family and society. Children, pregnant women and older adults represent the most vulnerable groups of the population, and in situations of humanitarian crisis their lag behind environmental opportunities deepens. Even though they are the focus of attention, grandparents are always the most neglected. Objective. Review the complex Venezuelan environment, the dimensions that make it up, its impact on the course of life and how it affects the living conditions of the elderly. Materials and methods. Demographic indicators was analyzed; socioeconomic, such as income levels, poverty and hyperinflation, quality of public services; health and food and nutritional security, labor inactivity and social protection and how they affect the living conditions of the elderly. Results. Dimensions was observed that show the negative impact on the quality of life of the elderly, who must now also overcome COVID 19, in addition to facing the orphanhood of the accelerated migration of their offspring, which has caused the loss of the demographic bonus and a decrease in life expectancy. Conclusions. The systematization of knowledge of the living conditions of this important group of the population is essential to guide the design of public policies aimed at their protection that includes decent pensions, health care and care, so that this population can count on autonomy, independence, and participation in the development of the nation(AU)


Assuntos
Humanos , Masculino , Feminino , Idoso de 80 Anos ou mais , Envelhecimento , Expectativa de Vida , Disparidades nos Níveis de Saúde , Nutrição do Idoso , Condições Sociais , Grupos de Risco , Meio Ambiente , Acessibilidade aos Serviços de Saúde
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