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A conceptual and empirical framework to analyze the economics of consumer food waste
We develop a microeconomic model to understand food waste of consumers. We capture at-home and away-from home food consumption and distinguish between food purchases and food consumption. We allow the consumer to choose the rate of food waste at home optimally to maximize her utility. We show that consumer purchases can decline or increase with a cut in the rate of consumer waste, depending on the elasticity of food demand. Using the UK data for poultry in 2012, we also show a case where for a price elastic demand food consumption increases with a reduction in the food waste rate, but food purchases (retail sales) increase
DISENTANGLING THE PRODUCTION AND EXPORT CONSEQUENCES OF DIRECT FARM INCOME PAYMENTS
This paper formalizes the production and export consequences of direct farm payments. Taxpayer financed direct payments distort exit and production incentives, while consumer financed subsidies also imply that the risks of domestic and export production differ. Welfare decompostion and empirical calibration illustrate the potential for import barriers to cross-subsidize exports.Agricultural and Food Policy, International Relations/Trade,
Can biofuel policies reduce uncertainty and increase agricultural yields through stimulating investments?
As history shows, the yield gap (the difference between actual and achievable yields) will not
necessarily close automatically. Investments in agricultural technologies may be key. Price volatility
is fundamental to investment. Price volatility has increased in agriculture in the past decade, leading
to higher risks for potential investments. Some of these increased risks may be offset by the certainty
offered by credible policies. The US experience indicates that ethanol policy may contribute to yield
increases. Analysis suggests that corn use by ethanol plants in the USA may explain a significant part of
the observed yield increase. A theoretical framework, centered on downside price-stabilization effects,
is offered here, supported by some US, EU, and Hungarian empirical evidence. The research presented
explores whether new ethanol plants resulting from effective biofuel policies could serve as a market
mechanism to stimulate investments in farming technologies, triggering increased productivity. A survey
of local stakeholders of an ethanol plant in Hungary, the only large-scale biofuel investment triggered in
Europe by the EUâs flagship bioenergy policy (the Renewable Energy Directive) suggests that relevant
investments may have been stimulated. Over half of the respondent farmers said that the presence
of the ethanol plant had stimulated investments in productivity. It is proposed that ethanol or biofuel
policies may be effective in closing the yield gap, in effect resulting in additional biomass production
and advancing the bioeconomy. With effective cross-sectoral policies, more biomass for food, feed,
bio-based materials and / or bioenergy purposes can be produced
Cation distribution in manganese cobaltite spinels Co3âxMnxO4 (0 †x †1) determined by thermal analysis
Thermogravimetric analysis was used in order to study the reduction in air of submicronic powders of Co3âx Mn x O4 spinels, with 0 †x †1. For x = 0 (i.e. Co3O4), cation reduction occurred in a single step. It involved the CoIII ions at the octahedral sites, which were reduced to Co2+ on producing CoO. For 0 < x †1, the reduction occurred in two stages at increasing temperature with increasing amounts of manganese. The first step corresponded to the reduction of octahedral CoIII ions and the second was attributed to the reduction of octahedral Mn4+ ions to Mn3+. From the individual weight losses and the electrical neutrality of the lattice, the CoIII and Mn4+ ion concentrations were calculated. The distribution of cobalt and manganese ions present on each crystallographic site of the spinel was determined. In contrast to most previous studies that took into account either CoIII and Mn3+ or Co2+, CoIII and Mn4+ only, our thermal analysis study showed that Co2+/CoIII and Mn3+/Mn4+ pairs occupy the octahedral sites. These results were used to explain the resistivity measurements carried out on dense ceramics prepared from our powders sintered at low temperature (700â750 °C) in a Spark Plasma Sintering apparatus
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