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200 papers

Brazil holds approximately 1/3 of population living infected with AIDS (acquired immunodeficiency syndrome) in Central and South Americas, and it was also the first developing country to implement a large-scale control and intervention…

Physics and Society · Physics 2014-10-27 F. J. Antonio , S. Picoli , J. J. V. Teixeira , R. S. Mendes

An age structured mathematical model with time dependent parameters is developed to investigate the dynamics of dengue transmission. Its properties are thoroughly analyzed in the first part of this work, as for example its disease free…

Populations and Evolution · Quantitative Biology 2025-11-21 Ihtisham Ul Haq , Serge Richard

Probability theory is applied for the effect of severe disturbances on the return rate on capital within multiannual stands growing crops. Two management regimes are discussed, rotations of even-aged plants on the one hand, and uneven-aged…

General Economics · Economics 2023-05-02 Petri P. Karenlampi

The complex relationship between climate shocks, migration, and adaptation hampers a rigorous understanding of the heterogeneous mobility outcomes of farm households exposed to climate risk. To unpack this heterogeneity, the analysis…

General Economics · Economics 2024-03-15 Marco Letta , Pierluigi Montalbano , Adriana Paolantonio

This study examined the relationship between trade facilitation and economic growth among the middle-income countries from 2010 to 2020 using 94 countries made up of 48 lower-middle-income countries and 46 upper-middle-income countries. The…

General Economics · Economics 2023-05-25 Victor Ushahemba Ijirshar

This paper examines the export promotion of processed foods by a regional economy and regional vitalisation policy. We employ Bertrand models that contain a major home producer and a home producer in a local area. In our model, growth in…

General Economics · Economics 2020-03-11 M. Okimoto

We study how tariffs affect industrial structure and welfare in an economy where sectors are complements and preferences are nonhomothetic -- two drivers of structural change. Import tariffs on a sector influence sectoral composition by…

General Economics · Economics 2025-11-18 Hayato Kato , Kensuke Suzuki , Motoaki Takahashi

This study decomposes the bilateral trade flows using a three-dimensional panel data model. Under the scenario that all three dimensions diverge to infinity, we propose an estimation approach to identify the number of global shocks and…

Econometrics · Economics 2021-01-19 Yufeng Mao , Bin Peng , Mervyn Silvapulle , Param Silvapulle , Yanrong Yang

The boreal forest plays a crucial role as a global carbon sink. This study uses two 250-year simulations of Canada's Taiga Plains, an area targeted by the 2 Billion Trees Program to evaluate afforestation and reforestation strategies that…

Climate change threatens biodiversity directly by influencing biophysical variables that drive species' geographic distributions and indirectly through socio-economic changes that influence land use patterns, driven by global consumption,…

Populations and Evolution · Quantitative Biology 2020-02-10 Simon Kapitza , Pham Van Ha , Tom Kompas , Nick Golding , Natasha C. R. Cadenhead , Payal Bal , Brendan A. Wintle

1. Climate change is altering plant phenology globally with potential deleterious impacts on animal species and entire ecosystems, yet the long-term effects of climate change on tropical leaf production remain poorly understood. 2. We…

Quantitative Methods · Quantitative Biology 2026-04-01 Laura Lüthy , Colin A. Chapman , Patrick Lauer , Patrick Omeja , Urs Kalbitzer

The impact of international tourism on biodiversity risks has received considerable attention, yet quantitative research in this field remains relatively limited. This study constructs a biodiversity risk index for 155 countries and regions…

General Economics · Economics 2025-05-22 Yingtong Chen , Fei Wu , Dayong Zhang , Qiang Ji

The concentration of the population in coastal regions, in addition to the direct human use, is leading to an accelerated process of change and deterioration of the marine ecosystems. Human activities such as fishing together with…

This paper investigates the causal relationship between income shocks during the first years of life and adulthood mortality due to specific causes of death. Using all death records in the United States during 1968-2004 for individuals who…

General Economics · Economics 2021-02-09 Hamid NoghaniBehambari , Farzaneh Noghani , Nahid Tavassoli

Policies to mitigate climate change and biodiversity loss often assume that protecting carbon-rich forests provides co-benefits in terms of biodiversity, due to the spatial congruence of carbon stocks and biodiversity at biogeographic…

Populations and Evolution · Quantitative Biology 2019-03-01 F. M. Sabatini , R. B. de Andrade , Y. Paillet , P. Odor , C. Bouget , T. Campagnaro , F. Gosselin , P. Janssen , W. Mattioli , J. Nascimbene , T. Sitzia , T. Kuemmerle , S. Burrascano

This paper estimates the causal effect of mineral trade on conflicts in Africa using a Shift-Share IV approach based on an exogenous price-commodity shock. The main result is that an increase in mineral trade significantly increases the…

General Economics · Economics 2024-08-20 Raphaël Boulat

The study of infectious disease has been of interest to ecologists since long. The initiation of epidemic and the long term disease dynamics are largely influenced by the nature of the underlying consumer (host)-resource dynamics.…

Populations and Evolution · Quantitative Biology 2022-11-17 Arnab Chattopadhyay , Swarnendu Banerjee , Amit Samadder , Sabyasachi Bhattacharya

This study investigates price seasonality in the Brazilian air transport industry, emphasizing the impact of the COVID-19 pandemic on domestic airline pricing strategies. Given potential shifts in demand patterns following the global health…

General Economics · Economics 2024-02-22 Alessandro V. M. Oliveira

Urban land growth presents a major sustainability challenge, yet its growth patterns and dynamics remain unclear. We quantified urban land evolution by analyzing its statistical distribution in 14 regions and countries over 29 years. The…

Deforestation, a major contributor to climate change, poses detrimental consequences such as agricultural sector disruption, global warming, flash floods, and landslides. Conventional approaches to urban street tree inventory suffer from…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Asim Khan , Umair Nawaz , Anwaar Ulhaq , Iqbal Gondal , Sajid Javed
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