Capacity Building for Pro-Poor Trade: Learning from the Limitations in Current Models

human development, aid, trade, security

The free cash flow theory of takeovers: a financial perspective on mergers and acquisitions and the economy

Consolidation and merger of corporations ; Stock market ; Corporations ; Cash flow

Cutting Costs of Catching Carbon - Intertemporal Effects under Imperfect Climate Policy

We use a two-period model to investigate intertemporal effects of cost reductions in climate change mitigation technologies for the power sector. With imperfect climate policies, cost reductions related to carbon capture and storage (CCS) may be more desirable than com-parable cost reductions related to renewable energy. The finding rests on the incentives fossil resource owners face. With regulations of emissions only in the future, cheaper renewables speed up extraction (the ‘green paradox’), whereas CCS cost reductions make fossil resources more attractive for future use and lead to postponement of extraction.climate change, exhaustible resources, carbon capture and storage, renewable energy, green paradox

What is the Difference in Profit per Acre between Organic and Conventional Coffee?

The research addresses the economic problem of deforestation. A contributing factor to deforestation is coffee production. Coffee is an indigenous plant that is naturally occurring in the native tropical forests. However, conventional coffee is grown on cleared forest soil. In the native forest there is the potential for additional fruits (bananas, mangoes, avocados) and wood products while in the conventional coffee production system the only product is coffee. Conventional coffee production often causes deforestation and soil erosion while the organic coffee production system does not. In addition, the price risk associated with the coffee monoculture is high and has proven disastrous to the sustainability of coffee production in past years. Thus, determining the comparative cost and return between the two methods can provide important information for coffee producers. The purpose of the research is to determine the per acre profitability between conventional and organic coffee. This will be determined by researching the distribution of quantity on representative plots. This will help identify any size or scale economies. Determining the difference in profit per acre between organic and conventional coffee production included identifying and working with production stakeholders, engaging in fieldwork, site and case study selection, and determining measurable, non-market benefits and costs that pertain to environmental and community factors. This included, but is not limited to fertilization, water, pesticide use, and timber harvest.coffee, inputs, outputs, species variation, Costa Rica, organic, conventional, Agribusiness, Crop Production/Industries, Environmental Economics and Policy, International Relations/Trade, Risk and Uncertainty,

Hortibot: Feasibility study of a plant nursing robot performing weeding operations – part IV

Based on the development of a robotic tool carrier (Hortibot) equipped with weeding tools, a feasibility study was carried out to evaluate the viability of this innovative technology. The feasibility was demonstrated through a targeted evaluation adapted to the obtainable knowledge on the system performance in horticulture. A usage scenario was designed to set the implementation of the robotic system in a row crop of seeded bulb onions considering operational and functional constraints in organic crop, production. This usage scenario together with the technical specifications of the implemented system provided the basis for the feasibility analysis, including a comparison with a conventional weeding system. Preliminary results show that the automation of the weeding tasks within a row crop has the potential of significantly reducing the costs and still fulfill the operational requirements set forth. The potential benefits in terms of operational capabilities and economic viability have been quantified. Profitability gains ranging from 20 to 50% are achievable through targeted applications. In general, the analyses demonstrate the operational and economic feasibility of using small automated vehicles and targeted tools in specialized production settings

Can Carbon Labeling Be Development Friendly? Recommendations on How to Improve Emerging Schemes

Can Carbon Labeling Be Development Friendly? Recommendations on How to Improve Emerging SchemesCarbon accounting and labeling for products are new instruments of supply chain management that may affect developing country export opportunities. Most instruments in use today are private business management tools, although the underlying science and methodologies may spread to issues subject to public regulation. This note seeks to inform stakeholders involved in the design of carbon labeling schemes and in the making of carbon emission measurement methodologies about an overlooked issue: How can carbon labeling be made to be both development friendly and scientifically correct in its representation of developing-country agricultural sectors?trade, carbon, development, carbon accounting, carbon labeling, exports, imports, supply chain, regulations, trade barriers

Carbon Labelling and Low Income Country Exports: An Issues Paper

In response to growing concerns over climate change, consumers and firms in developed countries are considering their carbon footprint. Carbon labelling is being explored as a mechanism for greenhouse gas emission reduction primarily by private actors. This paper discusses the carbon accounting activities and carbon labelling schemes that are being developed to address these concerns with a view to their impact on small stakeholders, especially low income countries. This discussion centres on transportation, and the common presumption that products produced locally in the country of consumption will have an advantage in terms of carbon emissions, and on size. Exports from low income countries typically depend on long distance transportation and are produced by relatively small firms and tiny farms who will find it difficult to participate in complex carbon labelling schemes. However, the popular belief that trade by definition is problematic since it necessitates transportation, which is a major source of emissions, is generally not true. The scientific evidence shows that carbon efficiencies elsewhere in the supply chain may more than offset the emissions associated with transportation. Indeed, the effective inclusion of low income countries in labelling schemes may offer important opportunities for carbon emission reductions due to their favourable climactic conditions and their current use of low energy intensive production techniques. The disadvantages of small size can be reduced by carbon labelling schemes that use innovative solutions to low cost data collection and certification.carbon labelling; exports; low income countries;

Episodic accretion: the interplay of infall and disc instabilities

Using zoom-simulations carried out with the adaptive mesh-refinement code RAMSES with a dynamic range of up to $2^{27} \approx 1.34 \times 10^8$ we investigate the accretion profiles around six stars embedded in different environments inside a (40 pc)$^3$ giant molecular cloud, the role of mass infall and disc instabilities on the accretion profile, and thus on the luminosity of the forming protostar. Our results show that the environment in which the protostar is embedded determines the overall accretion profile of the protostar. Infall on to the circumstellar disc may trigger gravitational disc instabilities in the disc at distances of around ~10 to ~50 au leading to rapid transport of angular momentum and strong accretion bursts. These bursts typically last for about ~10 to a ~100 yr, consistent with typical orbital times at the location of the instability, and enhance the luminosity of the protostar. Calculations with the stellar evolution code mesa show that the accretion bursts induce significant changes in the protostellar proper- ties, such as the stellar temperature and radius. We apply the obtained protostellar properties to produce synthetic observables with RADMC3D and predict that accretion bursts lead to ob- servable enhancements around 20 to 200 $\mu$m in the spectral energy distribution of Class 0 type young stellar objects.Comment: 17 pages, 14 figures, accepted by MNRA

On DP-Coloring of Digraphs

DP-coloring is a relatively new coloring concept by Dvo\v{r}\'ak and Postle and was introduced as an extension of list-colorings of (undirected) graphs. It transforms the problem of finding a list-coloring of a given graph $G$ with a list-assignment $L$ to finding an independent transversal in an auxiliary graph with vertex set $\{(v,c) ~|~ v \in V(G), c \in L(v)\}$. In this paper, we extend the definition of DP-colorings to digraphs using the approach from Neumann-Lara where a coloring of a digraph is a coloring of the vertices such that the digraph does not contain any monochromatic directed cycle. Furthermore, we prove a Brooks' type theorem regarding the DP-chromatic number, which extends various results on the (list-)chromatic number of digraphs.Comment: 23 pages, 6 figure