The purpose of this study was to determine the linkages that exist among research, extension, education, and farmers (R-E-E-F) and to propose ways of strengthening these linkages. To achieve this goal the following specific objectives provided the basis of this research: 1. To describe the context in which the R-E-E-F linkage exists. 2. To examine the ways that R-E-E-F functions including: - formal and informal linkages, - communication strategies, - feedback mechanisms, and - diffusion of technical information. 3. To determine how administrators view the research, technology-transfer, and farmer linkage. The study was based on Kaimowitz et aI's. (1990) conceptual framework for studying the links between agricultural research and technology transfer in developing countries. This framework looked at "linkage mechanisms" in terms of the organizational procedures used to maintain research-technology transfer links and "contextual factors" i.e., all the factors that affect the use and relevance of linkage mechanisms. / Ph. D.

Thesis (MScAgric)--Stellenbosch University, 1999. / ENGLISH ABSTRACT: Historically, commercial agricultural research in South Africa has been state supported, but due to recent political changes in South Africa this is changing. The political transition has been accompanied by changing economic policies, causing a tightening of public funds allocated to agricultural research. In 1992 the Agricultural Research Council was formed, primarily to enable greater industry involvement in research as a result of the expected long term budget cuts in publicly funded research. As a result there has been an increased recognition of the need to evaluate research in terms of the economic returns to investment so that decision makers have hard evidence on which to prioritize their investments. This study employs the well known production function approach to evaluate the economic benefits of publicly funded research in the South African deciduous fruit industry. In reporting the results of the research the study proceeds from an overview of the deciduous fruit industry, as well as an analysis of the structure of deciduous fruit research in South Africa. This is followed by a description of the economics of research expenditure, a description of ex post methods of evaluating the economic benefits of research, and the manner in which the data for the analysis was collected. The analysis suggests there is a statistically significant relationship between research and development and industry output as well as industry prices and output. However the results should be interpreted with care, and more effort should be made to ensure that required data are gathered. Nevertheless, the results show that increased research expenditure m the industry is justified. / AFRIKAANSE OPSOMMING: Histories gesien is kommersiele landbou-navorsing in Suid Afrika deur die owerheid ondersteun, maar as gevolg van die onlangse politieke veranderinge in Suid Afrika is hierdie toedrag van sake besig om te verander. Die politieke oorgang in die land het gepaard gegaan met 'n verandering in ekonomiese beleid, wat 'n inkorting van owerheidsbefondsing aan die Landbounavorsingsraad meegebring het. Hierdie Raad is in 1992 gestig, met die primere doe! om grater privaatsektor betrokkenheid in navorsing vanuit die betrokke sektor te verseker, as gevolg van die verwagte onttrekking van owerheidsteun. As gevolg hiervan, is daar nou 'n toenemende erkenning aan die behoefte om navorsingsprojekte te evalueer in terme van die ekonomiese opbrengs op sulke investering, sodat besluitnemers geldige bewyse het waarvolgens bestedingsprioriteite gemaak kan word. Hierdie studie gebruik die bekende produksie-funksie benadering om die ekonomiese voordele van navorsing in die Suid-Afrikaanse sagtevrugte bedryf te evalueer. Die studie begin met 'n oorsig oor die sagtevrugtebedryf, insluitend 'n analise van die navorsingstruktuur wat tans heers. Bogenoemde word gevolg deur 'n beskrywing van die bestaande ex post metodes om ekonomiese voordele van navorsing te evalueer, sowel as die wyse waarop die data vir die analiese ingesamel is. Die resultate wys dat daar 'n beduidende statiese verhouding is tussen besteding op navorsing en pryse en die opbrengs behaal deur produsente in die bedryf Hierdie resultate moet egter met sorg gelnterpreteer word, en meer moeite moet gedoen word om te verseker dat die nodige data ingesamel word. Nietemin toon die resultate dat verhoogde navorsingsbesteding in die bedryf geregverdig is

Mini-study project (MBA)--University of Stellenbosch, 2003. / ENGLISH ABSTRACT: This study considers the importance of research and development (R&D) investment for enhanced productivity in the agricultural sector. In this regard, some detail of R&D investments will be discussed. Focus is given to research intensity ratios and government spending intensities in different parts of the world, for both developed and developing countries. Furthermore, the extent of focus on investment activities by the public and private sector, respectively, will be considered. Aspects of agricultural R&D in Africa, such as the crisis of funding, incentives to perform, priorities and procedures will be deliberated. Measures for reform will be addressed. Thereafter, the sustainability of investment in agricultural R&D will be emphasized. Roles and responsibilities of the public and private sectors, funding adequacy, funding trends and mechanisms of funding are discussed. Attention will be given to the impact public and agricultural policies have on both the level and nature of agricultural investment. Furthermore, R&D efforts may impact a wide audience and in this regard welfare implications for different interest groups are evaluated. Previous econometric studies are discussed. The relationship between R&D investment and productivity in the sugar industry in South Africa is studied for the period 1925-2001 within the context of a production function regression. Data were obtained from the South African Sugar Association Experiment Station. The dependent variable was sucrose yield, while the independent variables were rainfall, land used in sugar production, technology and production costs. The techniques of ordinary least squares and Ridge Regression, respectively, were used. Using ordinary least squares, it was determined that the length of the R&D lag was three years. The short lag length may be justified by the fact that research done by the Experiment Station is of an applied nature and research, training and extension are integrated by this commodity organisation. Furthermore, the education level of South African commercial farmers is relatively high. All the variables were economically relevant and statistically significant at the 1% level, except the land variable, which was statistically significant at the 5% level. In addition, it was established that there was a structural change in the model during the period concerned. The impact of technology on sucrose yield was higher during 1959-1979, than either before or after this period. Remedies and violations to the classic normal linear regression model were considered. In particular, there was evidence of multicollinearity, as indicated by the high condition index and variance inflation factors. Multicollinearity was addressed using the technique of Ridge Regression (k=O,15).The R2 determined for this model was 83,43%. All the t-statistics, except for land, were statistically significant at the 1% level. The t-statistics describing the technology and production cost variables were higher in the Ridge Regression model. However, the land variable proved to be unstable using Ridge Regression, as the sign changed. This made it difficult to draw firm conclusions about the contribution of this variable. It was concluded that the Ridge regression model provided the best fit to the data. Finally, the rate of return to R&D investment in the sugar industry in South Africa was calculated. Cost-benefit analysis yielded a benefiUcost value of 1,61, when allowing for direct spillover effects to millers. Furthermore, the export realisation price for sugar was used in the calculation. Costs included those of production, harvesting and land. Using the three-year lag determined in this study, the internal rate of return in the South African sugar industry was estimated as 17{20%. This exceeds the discount rate in South African agriculture, the latter that is equal to 6%. In conclusion, this study makes the argument that even if a commodity displays public good characteristics, there may still be incentives for the private sector to invest, especially if research benefits can be internalised in the industry. A prime example of this situation may be seen in the sugar industry in South Africa, which is privately-funded by industry levies. This concept can be stretched to include other industries. Furthermore, this study established that there was sufficient statistical evidence to conclude, that there is a relationship between investment in R&D and increased productivity in the sugar industry in South Africa, at the 1% level of significance. In addition, it was determined that these investments yielded a high . rate of return. / AFRIKAANSE OPSOMMING: Hierdie studie oorweeg die belangrikheid van investering in navorsing en ontwikkeling vir verbeterde produktiwiteit in die landbousektor. In hierdie verband, sal sekere aspekte van navorsing en ontwikkelingsbeleggings bespreek word. Fokus· sal gegee word aan navorsingsintensiteit verhoudings and regeringsbestedings intensiteite in verskillende dele van die wêreld, vir beide ontwikkelde en ontwikkelende lande. Verder, sal die mate waarin die publieke- en privaatsektore betrokke is by investering in navorsing en ontwikkeling, oorweeg word. Verskillende aspekte van navorsing en ontwikkeling in landbou in Afrika word bespreek. Voorbeelde hiervan is die krisis in befondsing, motivering om te presteer, prioriteite en prosedures. Stappe vir hervorming word oorweeg. Vervolgens, word die volhoubaarheid van investering in navorsing en ontwikkeling beskou. Daar is verskillende rolle en verantwoordelikhede vir beide die publieke- en privaatsektore in hierdie verband. Verder, lê aspekte van befondsing, soos die genoegsaamheid daarvan, verandering in maniere van befondsing en verskillende meganismes van befondsing, onder die riem. Fokus sal gegee word aan die impak van publieke - en landbouregulasies op beide die vlak en tipe landbou investering wat waargeneem word. Navorsing en ontwikkelingsaktiwiteite beïnvloed 'n wye verskeidenheid van belangegroepe. Die mate waarin hierdie groepe geaffekteer word, word oorweeg. Die verwantskap tussen investering in navorsing en ontwikkeling en produktiwiteit in die suikerindustrie in Suid-Afrika word vervolgens beskou. Vorige ekonometriese artikels word bespreek, waarna modelle van meervoudige lineêre regressie bepaal word. Data vir die periode 1925-2001, wat produksie in die suikerindustrie beskryf, is verkry van die Suid-Afrikaanse Suiker Assosiasie Eksperiment Stasie. Die afhanklike veranderlike is opbrengs van sukrose, terwyl die onafhanklike veranderlikes na reënval, land onder suikerproduksie, produksiekostes en tegnologie verwys. Die tegnieke van gewone kleinste kwadrate en rif regressie (Ridge Regression) is gebruik. Deur die tegniek van gewone kleinste kwadrate te gebruik, is dit bepaal dat die sloer voor die voordele van navorsing en ontwikkeling inskop, drie jaar is. Dat die sloer wat bepaal is so kort is, kan gemotiveer word deur die feit dat die navorsing wat gedoen word deur die Eksperiment Stasie, van 'n toegepaste aard is. Verder is navorsing, opleiding en ekstensie is geïntegreer. Die vlak van opvoeding van Suid- Afrikaanse kommersiële boere is ook relatief hoog. AI die veranderlikes was ekonomies relevant en statisties beduidend by die 1% vlak, behalwe die veranderlike wat land onder suikerproduksie beskryf, wat beduidend was by die 5% vlak. Verder is dit bepaal, dat daar 'n strukturele verandering in die model ingetree het. Die impak van tegnologie was groter tydens die 1959-1979 periode, as vóór of ná hierdie tydperk. Daar is verskeie aannames wat gemaak word met die gebruik van 'n lineêre regressie model. Daar was tekens van multikolineariteit, soos duidelik deur die hoë waardes vir die kondisie indeks en variansie inflasie indeks aangedui is. Multikolineariteit is aangespreek deur die tegniek van rif regressie (k=0,15) te gebruik. Die R2 waarde wat vir hierdie model bepaal is, is 83,43%. AI die t-waardes, behalwe dié van land, was statisties beduidend by die 1% vlak. Dié veranderlike se koëffisiëntleken het met rif regressie, verander van negatief na positief. Siende dat die veranderlike geblyk het om onstabiel te wees, was dit moeilik om ferm beslissings oor die bydrae daarvan te lewer. Wanneer die rif regressie model vergelyk word met die model wat strukturele verandering beskryf met gewone kleinste kwadrate, is die t-waardes wat tegnologie en produksiekoste beskryf, heelwat hoër in die eersgenoemde model. Dit was beslis dat die rif regressie model die beste passing vir die data gebied het. Vervolgens is die terugkeerkoers tot investering in navorsing en ontwikkeling vir die suikerindustrie in Suid-Afrika bereken. Die beraamde waarde vir die voordeel/koste van navorsing en ontwikkeling was 1,61. Die voordeel wat deur suikerindustriemeulenaars verkry is, is in berekening gebring. Verder is die uitvoer realisasieprys vir suiker gebruik. Die kostes het dié van produksie, oes en geleentheidskoste van land ingesluit. Die interne terugkeerkoers vir die suikerindustrie in Suid-Afrika is bereken as 17,20%, inaggenome die drie jaar sloer voor die voordele van navorsing en ontwikkeling realiseer. Hierdie waarde is heelwat hoër as die verdiskonteringskoers in die Suid-Afrikaanse landboubedryf, wat beraam word op 6%. Ter samevatting, in hierdie studie word geargumenteer dat al sou 'n kommoditeit eienskappe van openbare goedere toon, daar tog motivering is vir die privaatsektor om te investeer, veral as die voordele van navorsing en ontwikkeling in die industrie self ge-internaliseer word. 'n Welsprekende geval hiervan is die suikerindustrie in Suid-Afrika wat privaat befonds word. Hierdie beginsel kan gestrek word om ander industrieë in te sluit. Verder was daar in hierdie studie oorweldigende statistiese bewyse, by die 1% vlak van beduidendheid, van 'n verwantskap tussen investering in navorsing en ontwikkeling in die suikerindustrie in Suid-Afrika en verhoogde produktiwiteit. Vervolgens was dit bepaal dat hierdie investerings 'n goeie terugkeerkoers gelewer het.

Maize (Zea mays L.) ranks third as a food crop after wheat and rice and is characterized not only as a cereal crop but also as a vegetable. Maize used as a vegetable is known as “baby corn”. Baby corn consists of unfertilized young ears harvested 2 or 3 days after silk emergence. The present study was implemented in 2009 at Western Kentucky University Agriculture Research and Education Center (36.93 N, 86.47 E) in Bowling Green, Kentucky. The purpose of the study was to compare the effect of different schemes of harvest on baby corn (BC) yield, grain maize (GM) yield, and estimated economic return. Experimental harvest treatments were 1) no BC harvest, only GM harvest, 2) first harvest as BC, final harvest as GM, 3) first and second harvests as BC, final harvest as GM, and 4) first, second, and third harvests as BC, final harvest as GM. Average estimated BC yields (Kg/ha) for Treatments 2, 3, and 4 were 1445.1, 2681.8, and 3437.5; GM yields (Kg/ha) for Treatments 1, 2, and 3 were 12522.2, 8226.5, and 1380.9; respectively. Since few grain kernels were found after three harvests for BC (Treatment 4), no usable GM yield was produced. BC and GM yields were used for evaluating the economic returns. Results indicated that the sequence of best economic returns would be obtained by harvesting BC three times (Treatment 4), first two harvests for BC and the final for GM (Treatment 3), first harvest for BC and subsequent for GM (Treatment 2), and only for GM harvest (Treatment 1). Although the pattern for only BC harvest was the most profitable system, the human labor requirement and critical timing of harvest limited its production. In states similar to Kentucky, BC could only be grown as an additional crop or to supplant a limited amount of traditional GM hectarage.

Economic development remains elusive for many world economies, but especially those of African countries. The current global inequalities in terms of GNP per capita and human living standards between developed and developing nations have ensured that the challenges of food insecurities are only some of the many negative experiences of underdevelopment in the African continent. Hence, delivery pressures are increasing on policy makers and researchers to provide tangible and timely economic solutions to the resilient state of underdevelopment. In the policy fights against the challenges posed by a lack of development in South Africa, the agricultural sector has in the past and continues in the present to play a central role. Such is the case because the majority of citizens rely on agricultural production activities for their livelihoods. For instance, even though the sector only contributed four percent towards the national Gross Domestic Product in 2006, in the Eastern Cape Province, more than seventy percent of the total population resided in rural areas. Moreover, in 2004 more than sixty percent of the national formal and informal employment levels were found in the sector. These economic indicators do not only reinforce the assertions that high levels of geographical and sectoral inequalities exist in the country’s economy, but they also illustrate the importance of the agricultural sector in public policy attempts, which are aimed at achieving food security alongside long-term developmental objectives. Some economists, especially the proponents of institutionalism, have argued that most of the recommendations to public policy interventions from mainstream economic research endeavours are not adequately helpful. The recommendations generally lack well considered and socially effective ideas, mainly because there remains some level of ignorance about the impacts that institutions have on economic and social systems. Some argue that this ignorance is reflected in (flawed) hedonistic and rationalist assumptions made about economic actors and in the methodological thinking of many research designs and economic analyses. The misuse of formal tools and statistical methods, for example, are some of the important factors, which have led to failures of the discipline of economics to provide effective policy solutions to problems of underdevelopment and poverty, especially in poor country environments. The thesis, having taken account of the majority of criticisms levelled against the classical and new-classical economic schools of thought, argues that the discipline as a whole lacks a paradigmatic integration of institutional and new-classical economic perspectives to offer appropriate guidelines for a methodology aimed at achieving socially responsive research outputs. The lack of this integration has resulted in a skewed selection of methods by economists, which are employed in research without a supportive and in-depth understanding of institutional and social factors. To support the thesis, a more effective and integrated framework for economic research is developed and presented with case study illustrations in a cumulative manner. The 20th century history of agricultural policies in South Africa, the agricultural and institutional case studies from the Eastern Cape Province alongside reviews of other agricultural studies are all used in presenting a case for rigorous institutional investigations in general economic research. These are also used in developing the proposed integrated framework, which aims to give guidance in developing research methods, which are more socially responsive. Having shown the usefulness of the proposed research framework, the thesis recommends that public policy interventions (at national and local levels) should aim to eliminate all types of institutions which have high associated transactional costs. The interventions should also encourage the emergence and growth of the types of institutions, which present the lowest costs to initiatives of economic development. In the primary case studies from the Eastern Cape Province, the insecurity of land tenure and the various local initiatives of business ventures are highlighted as two examples of the types of institutions, which respectively present high and low transactional costs to local initiatives of agricultural and economic development.

A vibrant and an efficient agricultural sector would enable a country to feed its growing population, generate employment, earn foreign exchange and provide raw materials for industries. The agricultural sector has a multiplier effect on any nation's socio-economic and industrial fabric because of the multifunctional nature of agriculture. The main objective of this study was to investigate how government expenditure on agriculture has affected economic growth in Zimbabwe from 1980-2009. The Log linear growth regression model was employed where gross domestic gross was the dependant variable and the explanatory variables are the factors which affect it which include government agricultural expenditure. The expenditures of government on agriculture were divided into three functions namely extension, credit assistance and R & D. The regression analyses were performed using Econometric-views 7 (E-views 7) statistical package. Regression was carried out on time series data for the period 1980 to 2009. The data was tested for stationarity and for autocorrelation. Problems of non stationarity of data were corrected by integrating the trending series. Results from the empirical analysis provide strong evidence indicating that agriculture is an engine of economic growth. The results from this study suggest that spending more on agricultural research and development can improve economic growth and ultimately reduce poverty. However, it can also be concluded that insufficient government agricultural expenditure on extension and credit assistance adversely affected economic growth in Zimbabwe, based on the results of the study. Global experience with pro-poor growth and empirical work spanning India, Benin and Malawi demonstrates the importance of agricultural expenditure for poverty reduction in poor rural areas, while also pointing to the need for complementary non farm sector growth. This study also proposes a simple methodology to estimate the agricultural spending that will be required to achieve the Millennium Development Goal of halving poverty by 2015 (MDG1) in Zimbabwe. This method uses growth poverty and growth expenditure elasticities to estimate the financial resources required to meet the MDG1. The study attempts to address a key knowledge gap by improving estimation of first MDG agricultural expenditure at country level.

Thesis (MScAgric)--Stellenbosch University, 1999. / ENGLISH ABSTRACT: The purpose of the study is to determine the rate of return to cover crop research in the wine industry. The method followed will prove an invaluable contribution toward the need to determine a suitable approach for evaluation studies. The importance behind such a study is the development of appropriate ex ante evaluation approaches, which will assist in the allocation of public research resources in both a social and economical manner. The wine industry is currently enjoying healthy international demand, but will need to remain competitive to reap the full benefit of international exposure. The need therefore exists for a continuation of research at the institutional level, in order to maintain the progressive nature of research knowledge that was available in the past. The evaluation of ex post and ex ante research will assist in maintaining government funding for research and help with campaigning for private investment of research in the wine industry. The use of two evaluation approaches was used for the analysis. Firstly, the production function approach achieved a rate of return of 44 percent, using weather and research expenditure as a means to explain the variations in wine grape yield. Secondly, a cost benefit approach was devised in order to make a direct comparison between the cost and benefits related to the cover crop research. The rate of return achieved for this mode of analysis is 37 percent, using trial plot data as a source of information on potential benefits. In addition to this the cost benefit approach was used to show the difference in rate of return that is achievable between two growing regions. The variable that exists between the two regions, is the higher rate of irrigation in one of the regions. The high rate of return achieved for the investment, provides suitable motivation for the increase in state funding for research in the wine industry, and provides valuable information for the enticement of support by private investors. The two methods used in the study will both draw a certain amount of criticism, largely as a result of the lack of available data. The empirical nature of the approaches is however simple and applicable down to the project level. / AFRIKAANSE OPSOMMING: Die doel van hierdie studie is om die opbrengs op navorsing oor dekgewasse in die Suid- Afrikaanse wynbedryf te bepaal. Hierbenewens het die studie dit ook ten doel om gepaste metodieke vir die evaluering van navorsingsprojekte daar te stel. In hierdie opsig maak hierdie studie ' n bydrae tot besluitneming oor die allokering van openbare fondse vir landbounavorsing op 'n ekonomies en sosiale optimale wyse. Die Suid- Afrikaanse wynbedryf beleef tans ' n bloeifase, hoofsaaklik as gevolg van sterk internasionale vraag na sy produkte, maar salop sy internasionale mededingendheid moet let indien die volle voordele hiervan benut kan word. Daarom is dit noodsaaklik dat die bedryf op tegnologiese gebied moet kan meeding, en dus dat navorsingsbesteding nie onoordeelkundig ingekort word rue. Inligting oor die opbrengs op navorsingsbesteding is dus noodsaaklik om die volgehoue betrokkenheid van die staat te kan regverdig, hetsy as finansier of as katalisator vir privaatsektor betrokkenheid. In hierdie studie is die opbrengs op navorsing gemeet deur beide die bekende produksiefunksie benadering sowel as deur koste-voordeel ontleding. In die eerste geval is 'n opbrengskoers van 44% gemeet, en in die tweede geval is dit 37%. By die kostevoordeel ontleding is ook 'n verdere onderskeid gemaak tussen twee wynbou-streke om die invloed van meer besproeiing te bepaal. Ten spyte van dataprobleme, veral wat betref die koste van navorsing, kan beweer word dat die inligting so verkry van nut sal wees vir besluitnemers by die toekenning van skaars navorsingsfondse, asook by bedinging om privaatsektor fondse.