1,074 research outputs found
Land Rental Market Activity in Agrarian Reform Areas: Evidence from the Philippines
Using data from 3,120 farm households surveyed in 2000 and 2006, the paper tests for factors that affect the degree and extent of households' participation in the rural land rental market. The survey period coincided with the full implementation of the Comprehensive Agrarian Reform Program (CARP) which imposes restriction on the conveyance and transfer (including rental) of all lands awarded under the program. Econometric results show that the rural land rental market is not functioning efficiently. Transaction costs in land leasing are significant resulting in high proportion of nonparticipants and incomplete adjustment toward desired cultivated area for households that participate in the market. Moreover, the poor and landless have limited access to the land rental market since participation in the market is not determined by agricultural ability but is strongly influenced by endowment of land and access to formal credit. While households with less land tend to rent-in more land, the demand for land increases for household owning land more than five hectares. On the other hand, the wealth bias of rural credit market is creating more barriers for the poor to access land. The poor has been able to participate in the rental market through share tenancy arrangements but dependence on informal credit markets constrains them to operate desired cultivated area. The twin effects of inefficient land rental market and credit market imperfections can offset labor advantages of family farms and cause farms to operate below optimal level. The need to achieve an efficient farm size is critical for rural development and should be viewed separately from land ownership. In particular, the land rental market plays a critical role in access to land by the poor and in households' adjustment to an optimal farm size. It would thus be desirable for the government to improve the regulatory framework for the land rental market to operate efficiently
What Cities Want to Measure: Bottom-Up Selection of Indicators for Systemic Change toward Climate Neutrality Aligned with Sustainable Development Goals (SDGs) in 40 European Cities
Cities are taking action to respond to climate change by designing and implementing
sustainable solutions which provide benefits and challenges to citizens. Measuring the progress and effects of such actions at the urban level, beyond mere greenhouse gas (GHG) emissions quantification, is still an emerging research area. Based on data from the 40 European cities belonging to 20 pilot city programmes within the EU-funded NetZeroCities (NZC) project, citiesâ selections and preferences for
indicators for assessing their climate actions are analysed in relation to the Sustainable Development Goals (SDGs). This study provides bottom-up evidence of citiesâ selection of non-GHG indicators through different levers of change, including participatory governance and social innovation, for assessing progress and the co-benefits of actions toward climate neutrality taken at the urban level.
The resulting list of indicators, classified according to the SDGs, provides evidence of citiesâ priorities and can be utilised by citiesâ climate transition teams and also by researchers, as it highlights gaps and opportunities compared to extant literature
Recent advances in the chemistry of metal carbamates
Following a related review dating back to 2003, the present review discusses in detail the various synthetic, structural and reactivity aspects of metal species containing one or more carbamato ligands, representing a large family of compounds across all the periodic table. A preliminary overview is provided on the reactivity of carbon dioxide with amines, and emphasis is given to recent findings concerning applications in various fields
Non-precious metal carbamates as catalysts for the aziridine/CO2coupling reaction under mild conditions
The catalytic potential of a large series of easily available metal carbamates (based on thirteen different non-precious metal elements) was explored for the first time in the coupling reaction between 2-aryl-aziridines and carbon dioxide, working under solventless and ambient conditions and using tetraalkylammonium halides as co-catalysts. The straightforward synthesis of novel [NbCl3(O2CNEt2)2],NbCl, and [NbBr3(O2CNEt2)2],NbBr, is reported. The niobium complexNbCl, in combination with NBu4I, emerged as the best catalyst of the overall series to convert aziridines with smallN-alkyl substituents into the corresponding 5-aryl-oxazolidin-2-ones
Integrating Optical Wireless Communication Into an Optical Bifocal Metrology for Aerospace
Recently an innovative bifocal optical metrology method was proposed for space applications (e.g., rendez-vous and docking), based on unmodulated white LEDs. Here we design, realize, and test a solution that upgrades the metrology to include a digital communication feature, with no modification of the optical elements of the original system: indeed, the scheme exploits the same optical sources that are needed for metrology, which are now also working as optical antennas as their intensity is now modulated. At the receiver side, the conventional camera is now sided by a common photodiode. The system provides unidirectional data communication at 10 kbit/s speed. It is designed to support manoeuvres up to 400 m distance. The lab tests confirm the effectiveness of the proposed solutions, showing correct data transfer without any noticeable degradation of the metrology system
Promotion of E-bikes for delivery of goods in European urban areas: an Italian case study
The paper presents the first results of some tasks of Pro-E-Bike, an Intelligent Energy Europe (IEE) funded project, started on March 2013 ending in February 2016. Pro-E-Bike promotes clean and energy efficient vehicles, analyses the performance of electric bicycles and electric scooters (Light Electric Vehicle, LEV) for the delivering of goods in urban areas and tests the use of these vehicles in seven European countries with twenty five companies, both delivering ones and companies that deliver their own products. Pilots will enable the demonstration of measurable effects in terms of reduction of CO2 emissions and energy savings in urban transport: related data about environmental, economic and social effects resulted by the introduction of e-bikes and e-scooters in the pilot cities will be collected. The paper will give an overlooks of the Italian pilot, that will take place in Genova, describing the subjects involved and the expected results
Effects of the current financial and economic crisis on the rural landscape as well as the agri-food sector in Europe and Central Asia
This paper reviews the expected effects of the current financial crisis and subsequent recession on the rural landscape, in particular the agri-food sector in Europe and Central Asia (ECA) on the basis of the structure of the rural economy and of different organisations and institutions. Empirical evidence suggests that the crisis has hit the ECA region the hardest. Agriculture contributes about 9% to gross domestic product (GDP) for the ECA region as a whole with 16% of the population being employed in the agricultural sector. As far as the impact of the financial crisis on the agri-food sector is concerned, there are a few interconnected issues: (1) reduction in income elastic food demand and commodity price decline, (2) loss of employment and earnings of rural people working in urban centres, implying also costly labour reallocation, (3) rising rural poverty originating mainly from lack of opportunities in the non-farm sector and a sizable decline of international remittances, (4) tightening of agricultural credit markets, and the (5) collapse of sectoral government support programs and social safety-net measures in many countries. The paper reveals how the crisis hit farming and broader agri-business differently in general and in the ECA sub-regions
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