The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
The Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries an6Nguyen To-Thec" Centre, for Legal Theory and Empirical Jurisprudence, KU Leuven (Belgium)I' BETA, CNRS, University of Strasbourg (Erance) and TIMAS. Thang Long University (Vietnam)e University of Economics and Business, Vietnam National UniversityExtension services have become the gold standard f The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries or agricultural development programs to spur farm productivity and enhance farmers’ livelihood. Scholars from distinct strands of research have contesThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
ted the virtues of these programs as systematic reviews failed to disentangle the different causal paths. We aim to unpack the relationship between thThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries elevant crop-farming studies. A meta-regression analysis is conducted by collating 335 ol>servations from 199 farm level studies to review the direct effect of agricultural extension activities on farm performance. While the implementation of extension programs is likely to be non-randomly distribut The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries ed in our sample, we employ the inverse probability of treatment weighting to correct for potential selection bias. Evidence for the absence of a publThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
ication bias in farm studies used in the meta-analysis is identified. Consonant with the theory of agricultural extension, we find that extension signThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries odel specification. Our empirical findings arc robust when replacing missing observations with imputed values computed from multiple imputation method.Keywords: Agricultural extension; Crop farming; Inverse Probability' of Treatment Weighting; Meta-analysis; Multiple Imputation: Publication bias; Te The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries chnical efficiency JEL Classification: Q16, 018, Cl 1, C29* Corresponding author: Nicolas Lampach. Address: Centre for Legal Theory and Empirical JuriThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
sprudence, International House, 45 Tiensestraat, 3000 Leuven. Belgium; Tel: +32 16 37 76 08; E-mail: nicolas.lampachfikuleuven.be.1Electronic copy avaThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries e Countl iesExtension services have become the gold standard for agricultural development programs to spur farm productivity and enhance farmers’ livelihood. Scholars from distinct strands of research have contested rhe virtues of these programs as systematic reviews failed to disentangle the differ The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries ent causal paths. We aim to unpack the relationship between these two constructs, and more specifically explore the main determinants driving systematThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
ic variations in rhe technical efficiency estimates from all relevant crop-farming studies. A meta-rcgression analysis is conducted by collaring 335 oThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries of extension programs is likely to be non-randomly distributed in our sample, we employ the inverse probability of treatment weighting to correct for potential selection bias. Evidence for the absence of a publication bias in farm studies used in the meta-analysis is identified. Consonant with the The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries theory of agricultural extension. we find that, extension significantly improves technical efficiency by 1.8% to 7.0%. Farm productivity significantlyThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
differs in country level characteristics, type of cro|)s and model specification. Our empirical findings are robust when replacing missing observatioThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries hting: Mcta-analysis: Multiple Imputation; Publication bias; Technical efficiencyJ EL Classification: QI6. 018, Cl I, C29 Word count: 92552Electronic copy available at: https://ssrn.com/abstract=32080341 IntroductionIt is indisputable that, agriculture is an inherent component of the economic develo The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries pment and human welfare. With a surge in food prices, depletion of natural resources ami adverse effects of climate change, rhe carrying capacity of fThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
arm productivity is under stress encompassing far-reaching implications for farmers' livelihoods. The main sources of growth in plant production stem The Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries on and availability of water supply appear to ho reaching its limit at a global view, a more efficient use of natural resources through innovative ways of farming will continue to play a substantial role in the future (FAO. 2015).Agricultural extension is an innovation from the 20th century designed The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries to stimulate agricultural development and to create incentives for farmers to adopt a new modern technology through the reduction of information acquThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
isition costs (Alexandratos, 1995, Anderson ami Fedor, 2001). Extension programs have been introduced worldwide with the objective to upgrade human caThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries . From nearly a million of extension workers advising farmers globally on a daily basis, the largest share of agents is located in low and middle-income countries, most notably with 70% in Asia (Bahai. 2001). Although, a number of successes have broil documented, critics posit deficiencies in the pe The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries rformance of extension systems as a result of low staff morale, financial stress, pour interaction with agricultural research, misuse of extension offThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
icials for political purpose or the failure to ensure farmers’ interest in training in the long-run (Agitew et al., 2018, Anderson and Feder, 2004, HaThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries iculture, we confine ourselves in this study to the technical efficiency defined as the ratio between the observed output and the maximum output with fixed inputs or, alternatively maximizing output with the available inputs and technology1 (Farrell, 1957).With the growing laxly of the literature on The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries technical efficiency in the field of agriculture, substantial efforts have been made to identify the main drivers explaining systematic disparities iThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
n rhe efficiency estimates (Bravo-Ureta or al., 2007, lliyasii et al., 2014, Jiang and Sharp. 2011, Thiam et al., 2001). Most notably, the study by BrThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries is higher for animal production compared to crop farming. Despite their careful investigation, the operationalization of the data Is limited. We argue that a more fine grained review on farm performance by analyzing separately animal and crop production classification would not only expand our unde The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries rstandings on the technical feasibility within each system, but also allows to provide distinct policy implications for both’Different definitions ofThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
productivity are possible, ranging from simple notion of yield per acre to more complex measure of total factor productivity and technical frontier. FThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries available at: https://ssrn.com/abstigroups.Since the majority of extension policies entailed supply-driven activities with a primary focus on the productivity improvement of basic food crops (Swanson, 2006b), we restrict our analysis merely to crop farming studies. While cereal is the most prevalent The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries crop with its cultivation exceeding 20% of global land surface2 *, minor crop groups likewise vegetables, fruits, root/tuber, nuts and other fibers tThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
ake up less than 2%. Under the future climate scenarios, the existence of low crop diversity in many regions of the world is alarming as it does not oThe Effect of Agricultural Extension Programs on Technical Efficiency of Crop Farms in Low and Middle-Income Countries^Nicolas Lampach"* Phu Nguyen-Va The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries 01, Lin. 2011).------^Figure 1 here]--------Displayed in Figure 1 is the number of scientific articles’ reporting the technical efficiency in the field of agriculture over the last decades. In addition to the steady rise of attention given by the scientific community on the concept of extension over The effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries time, we also observe that government expenditures in research ami development is soaring at the same speed.Given this positive trend, systematic revThe effect of agricultural programs on technical effeciency of crop farmsin low and middle income countries
iews and mcta-analysis are crucial tools to design effective decision making. Meta-analysis also provides a common basis to clarify a specific researcGọi ngay
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