scholarly journals Accounting for rainfall and the length of growing season in technical efficiency analysis

2018 ◽  
Vol 20 (4) ◽  
pp. 2583-2608
Author(s):  
Yiorgos Gadanakis ◽  
Francisco José Areal
Keyword(s):  
Technical Efficiency ◽  
Physical Environment ◽  
Farming Systems ◽  
Growing Season ◽  
Efficiency Analysis ◽  
Performance Measurements ◽  
East Anglia ◽  
Dea Model ◽  
Efficiency Ranking ◽  
Business Survey

Abstract The physical environment of farming systems is rarely considered when conducting farm level efficiency analysis, which is likely to lead to bias of performance measurements based on benchmarking methods such as Data Envelopment Analysis (DEA). We incorporate variations of the physical environment (rainfall and length of growing season) through the specifications of the linear programming in DEA to investigate performance measurement bias. The derived technical efficiency estimates are obtained using a sub-vector DEA which ensures farms are compared in a homogenous environment (i.e. accounting for differences in rainfall levels amongst distinct farm units). We use the Farm Business Survey to analyse a representative sample of 245 cereal farms in the East Anglia region between 2009 and 2010. Efficiency rankings obtained from a standard DEA model and a non-discretionary DEA model that incorporates the variations in the physical environment. We show that incorporating rainfall and the length of the growing season as non-discretionary inputs into the production function had significantly altered the farm efficiency ranking between the two models. Hence, to improve extension services to farmers and to reduce biased estimates of farm technical efficiency, variations in environmental conditions need to be integral to the analysis of efficiency.

scholarly journals Can Enhancing Efficiency Promote the Economic Viability of Smallholder Farmers? A Case of Sierra Leone

2021 ◽  
Vol 13 (8) ◽  
pp. 4235
Author(s):  
Silvia Saravia-Matus ◽  
T. S. Amjath-Babu ◽  
Sreejith Aravindakshan ◽  
Stefan Sieber ◽  
Jimmy A. Saravia ◽  
...  
Keyword(s):  
Sierra Leone ◽  
Technical Efficiency ◽  
Structural Equation ◽  
Crop Production ◽  
Structural Equation Models ◽  
Smallholder Farmers ◽  
Farming Systems ◽  
Economic Viability ◽  
Necessary Condition ◽  
Smallholder Farming

By developing meta-frontier efficiency and structural equation models, the paper examines whether farm economic viability is positively associated with technical efficiency in a highly food insecure context, such as that of rural Sierra Leone. The findings show that technical efficiency can be a sufficient but not necessary condition in determining economic viability of smallholder farming. It is possible to breach reproductive thresholds at the cost of reduced technical efficiency, when the crop diversification strategy of smallholders includes market-oriented high-value crops. This calls for a dual policy approach that addresses farmers’ internal needs for self-consumption (increasing efficiency of food crop production) while encouraging market-oriented cash crop production (diversification assisted through the reduction of associated transaction costs and the establishment of accessible commercialization channels of export related crops and/or high-value crops). The work also calls out for a move-up or move-out strategy for small holders to create viable farming systems in developing world.

scholarly journals Оптимізація контролю забур’яненості посівів сої за різних систем землеробства у Правобережному Лісостепу України

2015 ◽  
pp. 22-28
Author(s):  
С. П. Танчик ◽  
О. П. Мигловець
Keyword(s):  
Farming Systems ◽  
Growing Season ◽  
Continuous Action ◽  
Action System ◽  
No Till ◽  
The Impact

Приведені результати досліджень зі впливу ґрунтових та страхових гербіцидів на забур’яненість посівів сої під час вирощування її за різних систем  землеробства (промислова та no-till). Встановлено, що найбільша ефективність дії ґрунтових і страхових гербіцидів та найменший рівень забур’яненості відмічений під час застосування бакових сумішей як до появи сходів, так і в період веґетації культури, що впливає на формування врожаю сої. Допосівна бур’янова синузія ефективно знищується гербіцидами суцільної дія за системи no-till. The main results of research on the impact of soil and insurance herbicides on weediness of crops for cultivation of soybean under different farming systems (industrial and no-till) are presented. It was established that the greatest efficiency of soil and insurance herbicides and the lowest level of contamination was marked in the application of tank mixes before sprouting and during the growing season and crops, which influences the crop soybeans. Pre-sowing weed synusia is effectively destroyed by total herbicides continuous action system of no-till.

scholarly journals Corporate ownership and technical efficiency analysis in the Spanish real estate sector

2007 ◽  
Vol 4 (2) ◽  
pp. 100-113 ◽  
Author(s):  
Douglas Nanka-Bruce
Keyword(s):  
Real Estate ◽  
Technical Efficiency ◽  
Shadow Economy ◽  
Panel Data Analysis ◽  
Efficiency Analysis ◽  
News Article ◽  
Corporate Ownership ◽  
Spanish Economy ◽  
The Real Estate ◽  
Real Estate Sector

The real estate sector keeps contributing significantly to the Spanish economy. A recent news article reports the existence of inefficiencies in the nature and delivery of new properties. We investigate the technical efficiency of this sector using a non-parametric “reasonable” benchmarking frontier, acknowledging the marked influence of the sector’s shadow economy. We then relate the results applying a panel data analysis to the shareholding concentration and identity of firm ownership. We find no systematic support for the effect of corporate ownership on technical efficiency

An output-constrained DEA model as applied to efficiency analysis of football clubs

2015 ◽  
Vol 28 (2) ◽  
pp. 561-570 ◽  
Author(s):  
Gongbing Bi ◽  
Wen Song ◽  
Malin Song
Keyword(s):  
Efficiency Analysis ◽  
Dea Model ◽  
Football Clubs

scholarly journals Labour efficiency in construction industry in Europe based on frontier methods: data envelopment analysis and stochastic frontier analysis

2017 ◽  
Vol 23 (6) ◽  
pp. 787-795 ◽  
Author(s):  
Joanicjusz NAZARKO ◽  
Ewa CHODAKOWSKA
Keyword(s):  
Data Envelopment Analysis ◽  
Construction Industry ◽  
Technical Efficiency ◽  
Stochastic Frontier Analysis ◽  
Stochastic Frontier ◽  
Efficiency Analysis ◽  
European Countries ◽  
Personnel Cost ◽  
Data Envelopment ◽  
Frontier Analysis

The primary problems pertaining to productivity or – more precisely – efficiency are: how to define it and how to measure it. This article studies technical efficiency in Stochastic Frontier Analysis (SFA) – the input-oriented frontier model – in the construction industry and compares it with Data Envelopment Analysis (DEA) results. The models ex­plored in this paper were constructed on the basis of two outputs and personnel cost as an input. The research sample consisted of European countries. The aim was to determine whether there are substantial differences in estimation of ef­ficiency derived from those two alternative frontier approaches. The comparison of results according to the models may translate into higher reliability of the undertaken labour efficiency analysis in construction and its conclusions. Although the results are not characterized by high compatibility, the conducted analysis indicated the most attractive countries taking into account labour cost to profit and turnover ratios of enterprises. One of the determinants which should not be ignored when analysing the labour efficiency is the level of development of a country; however, it is not the sole factor affecting the efficiency of the sector.

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