Martin Henseler

Université de Rouen | UR · Département de Sciences Economiques

This article presents lessons on transcendence, from research on the socioeconomic impacts of the Covid-19 pandemic to policy, using experiences from Zimbabwe. The case study parallels literature on knowledge translation that suggests that the challenge of evidence-informed policy is more a problem of evidence production than evidence translation....

This paper reviews literature on climate change impacts and adaptation in developing countries with a focus on women, their role in households, production, and economic growth. Climate change impacts are a phenomenon channeled initially via the influence of changed climatic conditions on natural resources and their productivity. The consequences fr...

The relevance of different land-based microplastic inputs to marine pollution is still largely unclear. Nevertheless, the contamination of the terrestrial environment has gained considerable public interest. In particular, the high media presence of this environmental issue reinforces calls for policy regulation of microplastic inputs to the enviro...

This paper provides a macro-micro modeling analysis of the ex-ante effects of COVID-19 mitigation and recovery policies on macroeconomic and distributional effects, particularly on female and male workers, income distribution, and poverty in Zimbabwe. With an emphasis on modeling gender-disaggregated labor markets and COVID-19 policy responses, the...

Like other African countries, Senegal has been hit by Covid-19 and has implemented measures to contain the epidemic. These measures impact men and women differently, mainly via the impacts on the labour market. We simulate the economic shocks in a computable general equilibrium (CGE) model to assess the economic impacts. We capture the gendered imp...

Microplastic pollution in soils is a recent environmental problem and the lack of knowledge about the impacts and the extent of the problem are raising questions and concerns among researchers and politicians. Using a normative simulation model, we assess the extent of microplastic pollution in German agricultural soils originating from the land ap...

** The report is in german language.** The challenges associated with ongoing climate change will pose major challenges for global agriculture in the future and require well thought-out adaptation strategies. Thus, adaptation of water management is one of the major tasks to be tackled. Changes in the monthly water balance and precipitation depths...

URL: https://theconversation.com/south-africa-could-achieve-economic-recovery-and-lower-emissions-heres-how-179122 Measures adopted to control the spread of the COVID pandemic resulted in a worldwide reduction in economic activities. This benefited the environment by reducing pollution and greenhouse gas emissions. That said, we should not lose sig...

OPEN ACCESS ARTICLE: The worldwide COVID-19 pandemic has affected the tourism sector by closing borders, reducing both the transportation of tourists and tourist demand. Developing countries, such as Tanzania, where the tourism sector contributes a high share to gross domestic product, are facing considerable economic consequences. Tourism interlin...

OPEN ACCESS ARTICLE in "The Conversation" HERE: https://theconversation.com/new-research-how-covid-19-has-made-life-harder-for-south-african-women-169705 "There is no doubt that the pandemic has had a devastating impact on South Africa and its economy. During economic crises, women often pay a heavy price and Covid-19 is no exception. As in much o...

OPEN ACCESS: URL: https://theconversation.com/microplastics-arent-just-a-problem-for-the-ocean-theyre-in-our-soils-too-169854 ....... One of the environmental legacies of Covid-19 may well be vast amounts of plastic pollution. Since the beginning of the pandemic, scientists have warned of the long-term threat of littering face masks and other PPE i...

Microplastic (MP) contamination in agricultural soils has recently gained significant attention in science and society. The continuous plastic waste generation and its low degradation rates indicate a cumulative effect of MP in the environment that calls for more research on the amounts and impacts of this contaminant. The most discussed agricultur...

State-owned enterprises are companies in which government owns, directly or indirectly, more than 50% of the shares. Worldwide, states own 10% of the largest companies. In South Africa, state-owned enterprises play a significant role in the important sectors of mining, energy, communications, air and rail transport. Some state-owned entities loom...

The COVID-19 pandemic has exacerbated gender-related structural inequalities and barriers in women’s healthcare access – a phenomenon similarly observed in past economic and health crises. Yet long-term, intersectoral and structural reforms are given low priority. G20 leaders have an opportunity to use COVID-19 recovery initiatives to build more ge...

This paper offers a quantitative assessment of the impacts of the COVID-19 pandemic-induced lockdown and government fiscal plan, containing ‘green’ elements on the economy and the environment of South Africa. The analysis uses a dynamic computable general equilibrium model operationalised using a social accounting matrix coupled with a greenhouse g...

Little is known about the general equilibrium impact COVID-19 induces on different gender groups. This paper addresses the problem of relatively few general equilibrium studies focusing on gender impacts of COVID-19. The analysis uses a gendered Computable General Equilibrium model linked to a microsimulation model that analyses a mild and severe s...

A correction to this paper has been published: https://doi.org/10.1007/s10640-021-00573-x

This paper constructs and uses a recursive dynamic general equilibrium model for South Africa to examine the economywide consequences of a continued deterioration in performance of state‐owned enterprises and rise in foreign interest rates. A decline in state‐owned enterprisesproductivity has substantial negative ramifications on the rest of the ec...

Microplastic pollution in soils is a recent challenge for environmental science and policy. Designing and implementing policies to mitigate microplastic emissions requires scientific data, which is rare because analytical methods to detect and quantify microplastics in soils are still under development. Using a normative emission model we simulate...

Zusammenfassung Im Dialog mit Akteuren der Landnutzung wurden die Leitmotive Klimaschutz, Bioenergieerzeugung, Umwelt- und Naturschutz und Klimaanpassung herausgearbeitet und anschließend in Landnutzungsstrategien untersucht sowie die möglichen Beiträge dieser Landnutzungsstrategien zu gesellschaftlichen Zielen geprüft. Die Szenarienstudie CC-LandS...

Zusammenfassung In Kapitel 7 werden die betrachteten Maßnahmen detailliert beschrieben, ihr Beitrag zu den untersuchten Strategien Klimaschutz, Bioenergie, Natur- und Umweltschutz sowie Klimaanpassung eingeordnet und die zentralen Modellannahmen dargelegt. Für den Sektor Forstwirtschaft werden auch die verwendeten Maßnahmenvarianten für die Simulat...

Zusammenfassung Mit welchen Maßnahmen eine angepasste Landnutzung zum Klimaschutz beitragen kann, wird anhand von Handlungsfeldern im Siedlungswesen, in der landwirtschaftlichen Landnutzung und forstlichen Handlungsoptionen sektoral veranschaulicht. Es werden die Maßnahmen beschrieben und ihre jeweilige Relevanz hergeleitet. Ferner wird spezifizier...

A computable general equilibrium model linked to a microsimulation model is applied to assess the potential short‐term effects on the South African economy of the ongoing COVID‐19 pandemic. With a particular focus on distributional outcomes, two simulations are run, a mild and a severe scenario. The findings show significant evidence of decline in...

Microplastic pollution has recently gained the attention of the public media, politics and research. Microplastics (i.e., plastic particles less than 5mm in size) have been identified as a global environmental threat for terrestrial and aquatic ecosystems and human health. Agriculture is assumed to be both victim and polluter. Agricultural soils re...

This paper was developed within a joint working group of river catchment modelers within the research initiative "Plastics in the environment" of the German Federal Ministry of Education and Research. The work is based on model briefs (attached to the paper) that highlight the traits and keypoints of the models. In this synthesis, the boundaries an...

To contribute towards addressing the problem of relatively few general equilibrium studies focusing on gender impacts of disease pandemics, this paper uses a gendered Computable General Equilibrium model linked to a microsimulation model to study the short run economic effects of COVID-19 pandemic in South Africa. A mild and severe scenario is run...

Microplastic sources and pathways in the environment with the focus on soil are highlighted. Since to date, little knowledge exists on the quantities of microplastic accumulating in soils and its impact, we used a spatial model to estimate the masses of microplastic entering the soil from the three main agricultural sources: Sewage sludge, compost...

The ambitious climate policy objectives of the COP21 agreement require the design and the implementation of effective and efficient policy instruments. The effectiveness and efficiency of agricultural abatement options depend on regional climate and natural conditions, changes in the global economy, global agricultural markets and regional agricult...

The topic of microplastic contamination in agricultural soils has recently gained attention in science and society. Many unknowns exist in this new research field, e.g., about effects on ecological functions and the transport processes of microplastic between the terrestrial and aquatic environment. The most discussed sources for microplastic conta...

The topic of microplastic contamination in agricultural soils has recently gained attention in science and society. Experimental studies indicate that microplastic (i.e., plastic particles < 5mm in size) can have negative effects on soil organisms, but it is unknown if an impairment of ecologic functions happens at the actual concentration levels o...

Influential documents such as the synthesis reports produced by the Intergovernmental Panel on Climate Change (IPCC) in 2007 and 2014 and the Stern Review on the Economics of Climate Change in 2007 reignited a global effort to counter the effects of global warming and climate change. The United Nations has made climate change a focal point in all i...

Microplastic pollution has recently gained the attention of the public media, politics and research. Microplastics (i.e., plastic particles less than 5mm in size) have been identified as a global environmental threat for terrestrial and aquatic ecosystems and human health. Agriculture is assumed to be both victim and polluter of microplastic pollut...

We investigate the influence of weather on countries’ GDP and their main components of production, namely total factor productivity, capital stock, and employment. Our panel dataset includes annual observations on 103 countries for the period 1961–2010. We find that the main impacts of weather occur through temperature and drive the growth in GDP....

Vulnerability and policy responses in the face of natural resource discoveries and climate change: introduction—CORRIGENDUM - John Cockburn, Martin Henseler, Hélène Maisonnave, Luca Tiberti

This special issue contributes to the natural resource economics literature by shining a light on the specific challenges and opportunities faced by developing countries that have recently become dependent on natural resources or are particularly exposed to climate change. It is composed of five studies on countries from all regions of the developi...

Since the fall in world oil prices in June 2014, the economic and political settings for fossil fuel subsidy reforms have changed. As in many developing economies, in South Africa oil price subsidies are criticized as an inefficient policy instrument because they hamper economic growth, contradict objectives of climate change mitigation and mainly...

This paper draws together quantitative methodologies from environmental and tourism economics to develop a framework for evaluating investments in cultural tourism. Indirect and induced benefits of investment in cultural tourism contribute to the overall returns on investment and not including these considerations can result in a nontrivial underva...

In the Dominican Republic, tourism represents a significant share of growth domestic product. Improving and increasing cultural heritage tourism opportunities offer potential for tourism product diversification which can expand the visitor base, increase tourism expenditure, and ultimately contribute to enhanced economic growth and development for...

China's crop production sector faces severe water scarcity issues. Previous research has shown that effective water conservation policies exert strongly negative impacts on agricultural production and farmers' income, which make them politically unfeasible under Chinese conditions. To highlight ways out of this dilemma, the present study tests thre...

In Northern and Central Europe, short-rotation coppices (SRC) have become a profitable agricultural production alternative, particularly for marginal fields with suitable groundwater levels. Furthermore, the replacement of fossil fuels by the wood chips produced in SRC contributes to the mitigation of greenhouse gases (GHGs). Due to heterogeneous reg...

Agricultural production contributes 11% to the total German greenhouse gas (GHG) emissions. We compare the efficiency of three different land use based GHG abatement measures in combination and as separately applied measures: the production of short rotation coppices, of feedstocks for biomethane production, and peatland restoration. We evaluate th...

In Northern and Central Europe, short-rotation coppices (SRC) have become a profitable agricultural production alternative, particularly for marginal fields with suitable groundwater levels. The replacement of fossil fuels by the wood chips produced in SRC contributes to the mitigation of greenhouse gases (GHGs). Due to heterogeneous regional produ...

Climate change is expected to impact agricultural production conditions and groundwater resources. The climate change impacts are expected to be of particular importance for the German region North Rhine-Westphalia. Due to a high population density and intensive partial irrigation of agricultural production, future resource conflicts for groundwate...

Massive expansion of irrigation agriculture and consecutive overuse of water resources leads to on-going degradation of natural riparian ecosystems along China`s longest inland river the Tarim River in the Xinjiang Province. Water pricing and water quota are generally considered efficient means to push farmers towards a wiser use of scarce water re...

Agricultural production contributes 11% to the total German greenhouse gas (GHG) emissions. We evaluate the efficiency of three different land use based GHG mitigation measures: production of feedstocks for biomethane production, short rotation coppices and peatland restoration. We evaluate these measures with respect to cost efficiency (GHG mitiga...

Nitrous oxide (N2O) emissions from agricultural land use account for 56% of German agricultural green house gas (GHG) emissions. It is assumed that this share will increase up to 60% by 2020. The realistic estimation of N2O emissions for GHG inventory and policy scenarios requires a model approach which considers the regional drivers for both the N...

http://www.bfn.de/fileadmin/BfN/landwirtschaft/Dokumente/Skript_382_Kaercher_SYNAKLI_gesamt_2014_09_18_2.pdf Sowohl im Bereich des Naturschutzes als auch im Bereich des Klimaschutzes versucht die Politik, durch die Anwendung fiskal- und ordnungspolitischer Instrumente das Verhalten der Akteure in der Landwirtschaft zu beeinflussen. Negative Umwelt...

Due to their high protein content, soybeans are important feedstuffs in the European Union (EU). However, the cultivation of soybeans using genetically modified (GM) varieties in non-EU countries is increasing and the EU authorization of GM products takes longer than in other countries, leading to an asynchronous approval between the EU and non-EU...

Nitrous oxide (N2O) emissions from agricultural land use account for 56% of German agricultural green house gas (GHG) emissions. It is assumed that this share will increase up to 60% by 2020. The realistic estimation of N2O emissions for GHG inventory and policy scenarios requires a model approach which considers the regional drivers for both the N...

Since its introduction the Common Agricultural Policy (CAP) of the European Union (EU) has undergone several reforms in order to adapt policy instruments and enable the agricultural sector to fulfil multiple functions with respect to economic, supply and environmental objectives. In the German federal state Baden-Wuerttemberg agricultural productio...

The Renewable Energy Directive (2009/28/EC) requires that 20% of the EU’s energy needs should come from renewable sources by 2020, and includes a target for the transport sector of 10% from biofuels. This report analyses and discusses the global impacts of this biofuel target on agricultural production, markets and land use, as simulated by three a...

Assessing the impact of climate change on agriculture is a new challenge for quantitative model-based policy analysis. The impact of climate change will vary strongly across regions depending on pre-existing climatic, agronomic, and political conditions. Most of the present modeling approaches, which aim to analyze the impact of global change on ag...

Both climate and agricultural policy changes are commonly seen as important drivers for agricultural production. In this study, scenarios of climate and political change were calculated for the Upper Danube catchment area using the regional optimization model ACRE. Two political scenarios were calculated for the year 2020. One scenario assumes the...

ACRE is an Agro-eConomic model for agricultural pRoduction at rEgional level. Based on an extension of Positive Mathematical Programming (PMP) this model was developed as a decision tool for politics with respect to questions of global change-and political scenarios. ACRE was applied in two interdisciplinary projects for simulation of agricultural...

Replaced with revised version of paper 08/21/08.

The impact of the European Common Agricultural Policy (CAP) reform is of great interest with respect to the development of the agricultural sector. The Agro-eConomic pRoduction model at rEgional level (ACRE) was used to simulate the CAP reform 2003 up to 2013 for four European regions: England, Baden-Württemberg, Bavaria and Austria. The selected r...

ACRE is an Agro-eConomic model for agricultural pRoduction at rEgional level. Based on an extension of Positive Mathematical Programming (PMP) this model was developed as a decision tool for politics with respect to questions of global change- and political scenarios. ACRE was applied in two interdisciplinary projects for simulation of agricultural...

Climatic and socio-economic changes influence agricultural pro-duction. In order to estimate possible future impacts on agricul-tural production in the alpine regions of the Upper Danube catch-ment, scenarios of climate and socio-economic change were simu-lated using the regional optimisation model ACRE-Danube.

ACRE-Danube is an Agro-eConomic pRoduction model at rEgional level and was developed as a decision tool for policy making with respect to questions of global change and policy scenarios for the Upper Danube basin. In order to estimate the impacts of climate change on the Austrian part of the Danube river basin, scenarios were simulated considering...

ABSTRACT The RIVERTWIN project (www.rivertwin.org) supports the goals of the ,EU Global Water Initiative (www.euwi.org) and the EU Water Framework Directive by adjusting, testing and implementing ,the integrated regional model ,MOSDEW for the strategic planning of water resources management in three river basins in Europe, Central Asia and West Afr...

Replaced with revised version of paper 08/13/08.

ACRE is an Agro-eConomic model for agricultural pRoduction on rEgional level. Based on an extension of Positive Mathematical Programming (PMP) this model was developed as a decision tool for politics with respect to questions of global change- and political scenarios. Currently, ACRE is applied in the RIVERTWIN-Neckar project and politic scenarios...

ACRE is an Agro-eConomic model for agricultural pRoduction on rEgional level. Based on an extension of Positive Mathematical Programming (PMP) this model was developed as a decision tool for politics with respect to questions of global change scenarios. The validity of the theoretical approach as well as the algorithms has been tested by calculatio...