Browsing by Subject "Technical efficiency"

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An economic analysis of fish demand and livelihood outcomes of small-scale aquaculture in Myanmar
(2021) Aung, Yee Mon; Zeller, Manfred
Given that capture fishery production has either remained stagnant or declined globally, aquaculture has been responsible for the massive growth in the supply of fish to fulfill increasing demand and has also improved livelihoods. The development of the fishery sector, particularly aquaculture, has the potential to contribute to the Sustainable Development Goals (SDGs). New technologies and effective fishery management policies play critical roles in achieving this sectors contribution to the SDGs. Although aquaculture in Myanmar is dominated by large-scale fish farming, a larger number of small-scale aquaculture (SSA) households exist either legally or illegally because profitability and employment opportunities have enticed them to enter the sector. However, the potential of SSA farmers and their challenges are still overlooked. Even though Myanmar is one of the major consumers of fish and producers of aquaculture fish worldwide, to date, a holistic approach that considers the demand and supply side of Myanmars aquaculture sector is rare. The thesis focuses on two main topics. One topic is an analysis of the disaggregated fish demand system. Empirical evidence on whether the aquaculture sector can meet household demand through adequate availability of and accessibility to fish is vital to ensure household food and nutrition security and understand the future of the fish demand. The second main topic focuses on the two aspects of production based on SSA farms; production efficiency and impacts on welfare outcomes from the adoption of sustainable aquaculture (SA) technologies. To fulfill fish demand by increasing the supply of fish from farms, production efficiency of the farmers needs to improve to generate profitable in the face of lower fish prices that will accompany an increase in supply. In addition, traditional aquaculture production practices are risky and are not a long-term option for SSA farmers. Therefore, renewing or modifying productive resources and implementing new technologies may play critical roles in the development of a sustainable SSA sector. The study on the fish demand analysis in Chapter 2 relies on nationally representative data from the "Myanmar Poverty and Living Conditions survey (MPLCS) in 2015,". For the production side analysis in Chapters 3 and 4, primary survey data originate from 440 SSA households collected in three townships in Phyapon District, Ayeyarwady Delta region, Myanmar. Chapter 2 estimates the demand parameters differentiated by fish supply sources (aquaculture, freshwater capture, marine capture, and dried fish) and household groups (wealth group and household location) in Myanmar using a three-stage budgeting framework, combined with a Quadratic Almost Ideal Demand System (QUAIDS). The results reveal that fish demand from all sources of fish and household groups increases with income because fish is the second most crucial food commodity after rice in Myanmar. A substantial share of the increasing demand for all sources of fish is likely to come from poor and rural households with growing incomes due to their higher-income elasticity for all sources of fish. Moreover, less elastic price elasticity of demand in most cases for poor and rural households indicates that those households have less animal protein substitutes for fish available and accessible because fish is the cheapest form of an animal protein source in Myanmar. Due to the income responsiveness of aquaculture fish, its demand will grow faster than that of other fish sources. This study confirms that the rapidly growing aquaculture sector can compensate for the concurrent stagnation of capture fisheries production to fulfill the increase in the fish demand. The studys findings suggest that effective management policies and new technologies are essential to sustain the fish supply from capture fisheries and aquaculture. Intervention programs that sustainably increase aquaculture production will generate the most effective and significant effects on securing households food and nutrition security in the long-run. Chapter 3 analyzes the current technical efficiency level of SSA farms and the link between womens level of participation in decision-making (WPDM) activities and the technical efficiency of fish farming using the two-stage double bootstrap data envelopment analysis (DEA) method. The results show that most SSA farming households are not technically efficient, performing in a range of 45%-60% below the production frontier. All the inputs used contain slacks, such that all of them are over-utilized in inappropriate ratios. This study reveals that while some of the households socio-economic and production characteristics are significant shifters to enhance efficiency of fish farming, decision-making power of women at the household-level is found to significantly improve the level of technical efficiency through its effects on the ability of household members to allocate and organize resources optimally. This study highlights the vital need to promote intervention programs targeted at improving the technical efficiency of SSA farming households. Policies and intervention programs aimed at increasing productivity in the aquaculture sector would benefit by including women empowerment programs to reduce gender inequality and promote equity. Chapter 4 evaluates the determinants and the impacts of SA technologies adoption on SSA households’ welfare outcomes using the endogenous switching regression (ESR) model. The significant value of the correlation coefficients between the error terms of the adoption decision and the outcome equations, as well as heterogeneity in the outcome variables between adopters and non-adopters, confirm that the ESR model is more appropriate than data pooling in a regression model. The models actual and counterfactual results highlight that the adoption of SA technologies increases the SSA households welfare outcomes, measured by fish yield per ha, Household Dietary Diversity Score (HDDS), and Total Food Consumption Score (TFCS). However, the actual adopters would benefit the most in terms of fish yield per ha and TFCS from adopting SA technologies because the average treatment effects of adoption on adopters are larger than that of non-adopters for these variables. The results highlight that household knowledge about aquaculture production and information sources are main drivers for the adoption decision and improving welfare outcomes. Therefore, appropriate policies targeting SSA development should emphasize the promotion of farmers awareness and adoption of SA technologies by providing improved extension services. This thesis findings contribute to the current debate that the development of the aquaculture sector can help achieve some of the SDGs. In particular, aquaculture can help end hunger through increased food security by making fish more widely available and accessible by increasing the supply of fish. Moreover, aquaculture can improve gender equality and women’s empowerment through creating employment opportunities linked to the aquaculture sector. Given the lower technical efficiency level and positive welfare impacts of SA technologies, it is recommended that the government and other development organizations disseminate information on the improved aquaculture practices and suitable input use through improved extension services to SSA farmers. Due to the dominance of a single fish species in the aquaculture sector, the government needs to support research and development programs in the hatchery sector for a new generation of species. Another recommendation is to reformulate the current "Farmland Law 2012" because it puts restrictions on converting agricultural land to fish ponds, which is preventing farmers entering the aquaculture sector legally. The above policy recommendations are crucial to achieve growth in the SSA sector and increase women’s intra-household decision-making power, thereby opening the door to improve livelihoods.
Contract farming and its impact on production efficiency and rural household income in the Vietnamese tea sector
(2011) Saigenji, Yoshiko; Zeller, Manfred
Over the last two decades, Vietnam accomplished rapid economic growth under the transitional economy. Significant developments in the agricultural sector brought in by the renovation policy have propelled the country to the rank of the second largest rice exporter in the world. The steady economic growth along with increasing population has led to a rise in demand for agricultural products in the domestic market. Furthermore, Vietnam?s accession to the World Trade Organization (WTO) in 2007 is seen to have boosted the country?s economic reforms resulting in greater integration with the global economy. Despite these massive political and economic changes, Vietnam is still struggling with high poverty levels, particularly in the remote North West region. The country?s income poverty rate stands at 15.5% while its reaches a 39.4% in the North West Region of the country (GSO 2007). The North West region, with its mountainous topography and temperate climate, is one of the main and historical tea cultivation areas in Vietnam. Its surrounding big cities offer steady demand for high quality tea produced in this region. In 1999, the Vietnamese government implemented a development plan for tea production for the period of 2005-2010 (Decision 43/1999 QD-TTg) with an aim to increase production, export and create employment. The implementation of this policy was expected to alleviate poverty in the uplands tea producing areas, which are often poor mountainous regions with small scale farming, and limited off-farm income opportunities. Other important public policies measures adopted by Vietnam to stimulate the development of the tea value chain and promote greater access to market for the rural poor farmers include ?the law of Private Enterprise? which was promulgated in 1990, and ?the Enterprise Law? which was enacted in 1999 and revised in 2005. In addition to such public policies, vertical coordination in tea supply chain is required to ensure greater small-scale farmers participation to market. Tea being a perishable agricultural commodity which needs early processing after harvesting, vertical coordination can reduce production and marketing risk faced by small-scale farmers. Contract farming is a type of vertical coordination that encourages small-scale farmers? participation in tea production. It refers to an arrangement between producers and processors to exchange inputs and outputs with pre-agreed price, time, quality and quantity (Singh, 2002). It is also applied widely in the tea sector of North-Western Vietnam. The role of contract farming as a rural development tool has been discussed in many empirical studies. One major thread of that literature is that contract farming permits to link producers with agricultural markets especially in less developed countries. It is argued that contract farming offers advantages for small-holder farmers in ensuring their access to inputs, credit, insurance, information, technology and markets. In economics theory, particularly in the framework of new institutional economics, contract farming is often explained as an institutional response to market failures such as information asymmetric with respect to price and/or quality and the incompleteness or imperfections in the markets for credit, inputs and agricultural services. Transaction cost is one of the important elements in the analysis of market institutions. Empirical studies reveal that high transaction costs discourage small-holders to participate in markets. In tea production, sunk costs associated with high initial investments, and commodity?s perishable and time specific processing characteristics, heighten their asset specificity. This high degree of asset specificity in tea production emphasizes the need for contract farming. Furthermore, contracting is one way to divide risks associated with production and marketing between the firm and the producer. In short the method of contract farming provides a foil for the shortcomings in both parties. The objective of this study is to investigate the importance of income from tea production for the household income of poor small-holder farmers in North West Vietnam. More specifically, given the importance of vertical coordination in agricultural production, the study?s main focus is to investigate the involvement of small-holder farmers in the integrated agro-food channels and evaluate its impact on their livelihood. There are three specific research questions included in the study: 1. Does contract farming enhance production efficiency compared to non-contract farming? 2. What are the differences in socio-economic characteristics of contract and non-contract farmers? 3. How strong is the impact of contract participation on household income? For this study, Moc Chau district, one of the traditional tea producing areas in Vietnam, was selected as the research site. The district has 3,200ha of tea producing area with a total of 6,726 households engaged in tea production. Moc Chau is located 950m above sea level, and has tropical monsoon climate, which is ideal for tea production. Three types of organizational arrangements are found in terms of production and marketing where tea producer were involved: 1. via state-owned enterprise 2. via private company 3. and via direct spot market The population is stratified into four clusters: 1. tea farmers contracting with state-owned enterprise (SOE) 2. tea farmers contracting with private firms or cooperative 3. tea farmers with no contract 4. and non-tea farmers A sample of 40 households was randomly drawn from clusters 1 and 2 each. A larger sample was obtained from each of the clusters 3 and 4, since they serve as control groups with higher heterogeneity and variance with respect to socio-economic and farming characteristics. Overall the samples from the four clusters consisted of 245 farm households. The survey questionnaire included modules on household demography, other socio-economic characteristics and tea production. The socio-economic modules of the questionnaire were based on Living Standard Measurement Surveys (LSMS) methodology. These modules aim to measure and understand the living standards of households. The tea production modules aim to obtain information on production, costs and production efficiency, and the market module consisted with the questions on contract participation associated with socio-economic characteristics of households. In addition, quantitative and qualitative surveys at the village level and on a few selected tea firms were conducted to understand institutional changes in the village and to investigate socio-political factors influencing tea production. The entire survey was conducted during the period between June and November 2007. The first research question was investigated using the Stochastic Production Frontier Function (SPFF) model to estimate the technical efficiency associated with socio-economic characteristics of households, and to assess the difference among the clusters. The results showed high coefficient estimates of partial production elasticity associated with land size and material costs (a sum of costs of fertilizer, manure and pesticide). The SPFF model also identified significantly higher technical efficiency estimate of the group which is in contract with the SOE by applying non-parametric tests. This observation is associated with three different household characteristics: age, education and number of farm income source. Contrary to our initial expectation, living standard of households was not a determining factor for achieving higher technical efficiency. This result threw light on one concern: there might be a selection bias if contract participation is associated with household characteristics. To deal with the problem of homogeneity in the model, a treatment effects model was applied to control selection bias, and estimate and assess the technical efficiency with reduced-bias samples. The second research question was investigated using the Binary Outcome model to find the probability of participation. Ten variables obtained from household survey were included in the model to determine contract participation in a contract farming scheme. The results revealed that six out of ten variables associated with household characteristics are statistically significant determinants of participation in contract farming. The six variables are average age of adults, squared average age of adults, proportion of adults who finished secondary school, years of experience in tea production, number of years of residence in the village, and number of memberships in organizations of adults. The results indicated that older farmers participate more in contracts than younger farmers; perhaps to avoid risks associated with marketing and production. Also, those farmers who have more experience in tea production tend to participate more in a contract farming scheme. Access to information also might be one of the important determinants for farmers to decide to participate in a contract. Longer residence in the village negatively affects contract participation because it broadens farmers? social networks where they can acquire more market information which enables the establishment of their own marketing channels. On the other hand, farmer?s membership in any kind of organizations positively affects contract participation. By being members of an organization, farmers are more exposed to positive information on contracting which might enhance their participation. To assess the impact of contract farming participation on income, the propensity score matching method was applied to reduce the bias in the estimation of the treatment effect of contract farming participation. The estimation revealed a statistically significant, but very small impact of contract farming participation on daily per-capita income of about 900 Vietnamese Dong (VND). The technical efficiency estimate after matching revealed a statistically significant difference between farmers who contract with SOE and non-contract farmers, but there was no statistically significant difference between farmers who contract with private firms and non-contract farmers. Hence, it can be assumed that the SOE provides more precise and experienced extension service or technical advice than the private firms. The empirical study shows that production efficiency and income of households could be increased through participation in contract farming. It also highlights that government can play a crucial role in linking resource-poor farmers to market, particularly in developing countries.
Fertilizer quality and its impacts on technical efficiency and use intensity in the North China Plain
(2014) Khor, Ling Yee; Zeller, Manfred
There has been a significant increase in agricultural output in the past 50 years. A major factor of this growth is the rise in input use such as fertilizer, especially during the beginning of this period. However, the trend is not uniform throughout the world. Even though there are still regions where fertilizer can contribute greatly to the increase in yield, this input is so overused in some other places that its marginal productivity is no longer significant. In this case, not only is it a waste of valuable resources, it also leads to environmental degradation and pollution that is detrimental to human health. To make matters worse, the quality of the agricultural input itself has been of increasing concern lately. It includes problems such as normal seed being sold as hybrid seed, pesticide that is mixed with less effective chemicals, or fertilizer which contains less nutrient than that labeled on the package. We focus our research on the North China Plain, a region with both fertilizer overuse and fertilizer quality problems. The issue of low fertilizer quality is however not confined to this region only, as recent news reports have indicated that substandard or fake agricultural input is a problem in other countries as well, for example Bangladesh, Cambodia, Nigeria, Tanzania, and Vietnam. In addition, although the analysis presented in this dissertation concentrates on fertilizer, some of the methodology can also be extended to examine the impact of other agricultural inputs with questionable quality, such as seed and pesticide. The main theme of our study is split into three subtopics: efficiency, wealth effect, and use intensity, with each of them focusing on a different aspect of the impact from low quality fertilizer. The main contribution of this dissertation is that despite the widespread problem of fertilizer quality, we believe we are the first to examine its impact both theoretically and empirically on efficiency and use intensity. The theoretical contribution includes deriving the bias that exists if one were to ignore the quality aspect in the estimation of production functions and technical efficiency, especially if the research area is located at one of the places with fertilizer quality problems, such as China and the other affected countries. We also provide a theoretical framework that reconciles the different findings in the literature on the direction of wealth effect on fertilizer use. It offers a consistent explanation on why the wealth effect can be different when we are looking at regions or farmers of different wealth levels. Empirically, the dissertation quantifies the magnitude of estimation bias in input elasticity and technical efficiency in our research region of North China Plain. It also supports our theoretical derivation and shows that the direction of wealth effect is not fixed across farmers of different wealth levels. Finally, the integration of fertilizer testing into a household survey allows us to look closer at the link between perceived and true fertilizer quality, as well as how they affect the fertilizer use intensity of the farmers. The worsening fertilizer quality issue in the North China Plain is of great concern because - as this dissertation research shows - it leads to an increase in fertilizer use, which is already excessive in the area. This is not only a waste of valuable resources reducing economic efficiency but also causes environmental and health problems, e.g. through pollution of ground water. The currently implemented policy of subsidizing the fertilizer manufacturers is a double whammy in this regard because by keeping the price of the product low, it encourages the usage of an input that is already overused. It also makes the quality control of the fertilizer in the market more difficult, with the presence of so many small scale producers that are inefficient. In view of these deficiencies, it would be better to shift the policy focus from price reduction to quality improvement. A suggestion is to facilitate the award of quality labels to satisfactory products with regular third-party testing of the fertilizer to ensure that its quality does not deteriorate after receiving the label. The honest producers in the industry could also help set up a sector-wide monitoring body to prevent their image from being tarnished by the less responsible manufacturers. An additional recommendation is to increase the resources and staff available to extension service in order to increase the information flow between policymakers and farmers.
Technology adoption and farm performance in sub-Saharan Africa: evidence from Mozambique and Ghana
(2025) Asravor, Jacob; Zeller, Manfred
Increasing the productivity of agriculture in sub-Saharan Africa (SSA) is fundamental to achieving many of the Sustainable Development Goals (SDGs) in the region and, by extension, in the world. Given its importance to rural livelihoods and national economies in SSA, productivity growth in this crucial sector has the potential to stimulate broad-based poverty reduction (SGD 1) and further address the persistent food insecurity and malnutrition challenges (SDG 2) faced by the region. However, despite its potential for growth and importance to the region, productivity growth in agriculture has either stagnated or declined in SSA over the years. Efforts to tackle this persistent challenge have been focused on the promotion of improved technological packages and modern farming practices in various parts of the region. Nonetheless, adoption has mostly remained sluggish across SSA, stressing the continuing need for a deeper understanding of the underlying barriers to sustained adoption, as well as the effects of adopted technologies and farming practices on farm performance, particularly in terms of technical efficiency and technological gains. The smallholder farming contexts of Mozambique and Ghana offer distinct cases for gaining useful insights into the underlying barriers to sustained adoption of modern technologies and farming practices, as well as their effects on farm performance. Specifically, despite ongoing efforts by the Mozambican government and development partners to promote sustainable intensification practices, such as integrated soil fertility management (ISFM) practices (including mineral fertilizer, improved seeds and depending on the location, organic inputs such as manure and compost), adoption remains low among farm households. As a result, resource-poor farmers often resort to unsustainable land use practices, such as shifting cultivation, slash-and-burn agriculture, deforestation and forest degradation, along with low-cost agronomic practices like crop rotation, crop residue retention and intercropping to safeguard soil fertility. However, evidence is scarcely available on the underlying barriers to sustained adoption of promoted ISFM practices, along with the technological and technical efficiency gains associated with integrating improved versus recycled seeds with agronomic practices in Mozambique. Furthermore, one of the key challenges to technology adoption, as well as to farm performance and the long-term sustainability of agriculture, is the issue of aging farming population. This issue is particularly pressing in Ghana, where, in addition to the growing disinterest of young people in farming and an estimated life expectancy ranging from 55 – 65 years, the average age of farmers is reported to be 55. Given that the majority (73.5%) of Ghana’s population is below the age of 36, an improved understanding of how farm operators’ age influences their managerial performance and technology adoption is crucial for shaping evidence-informed policies aimed at attracting, retaining and leveraging this demographic dividend within the Ghanaian agricultural sector. From the foregoing, this thesis has three key objectives: (1) to explore context-specific evidence on the systemic barriers to sustained adoption of integrated soil fertility management (ISFM) practices by Mozambican smallholder farmers; (2) to examine the technological and technical efficiency gains associated with integrating improved versus recycled seeds with agronomic practices such as crop rotation, intercropping and crop residue management by Mozambican smallholder farmers; and (3) to assess how the age of farm operators – disaggregated into the youth, middle-aged and aged – influences their managerial performance and farm technology adoption in Ghana. The objectives of this thesis were achieved using data from both primary and secondary sources. Relying on mixed-methods research design, qualitative data were drawn using key informant interviews (KIIs) and focus group discussions (FGDs), and quantitative data via a household survey in the Central and Northern zones of Mozambique. These primary data were used to address the first and second objectives of the thesis. Overall, 32 qualitative interviews, consisting of 8 FGDs, 5 medium- and large-scale farmer KIIs and 19 expert KIIs were conducted in Mozambique. This was followed by a household survey which was conducted in the Central and Northern zones of Mozambique, involving 607 farming households who were selected through a multi-stage sampling technique. Both datasets were collected in 2022. To address the third objective of the thesis, secondary data from two nationally representative surveys in Ghana were used. These include all seven waves of the Ghana Living Standards Survey (GLSS) which were conducted from 1987/88 – 2016/17 and the two waves of the Ghana Socio-economic Panel Survey (GSPS) conducted between 2009/10 and 2014/15. While the GLSS was implemented using a repeated cross-sectional design, the GSPS followed a panel design. Overall, 24,596 farm households across Ghana were included in the sample for analysis. This thesis is organized into five chapters. Chapter 1 introduces the research topic by providing a general overview of the study within the global and sub-Saharan African contexts, followed by background information on agriculture and technology adoption in both Mozambique and Ghana. Chapter 2 explores the systemic barriers that continue to impede the sustained uptake of ISFM practices among Mozambican smallholder farmers. Chapter 3 evaluates the technological and technical efficiency gains associated with existing farmer practices of integrating improved versus recycled seeds with agronomic practices in Mozambique. Chapter 4 examines the relationship between farm operators’ age, technology adoption and managerial performance in Ghana. Finally, chapter 5 presents the conclusion of the thesis, outlines its limitations and makes recommendations for policy and future studies. Chapter 2 relies on mixed-methods research design to explore the systemic barriers to sustained adoption of ISFM practices among Mozambican resource-poor farmers. Complementing content analysis of qualitative data with descriptive analysis of data from a household survey, the findings indicate that whereas Mozambican smallholder farmers have generally recognized the compelling need for ISFM practices in high-value crop production systems such as vegetables, cotton, sugarcane and tobacco, they are reluctant to make similar investments in food crops. Instead, they adopt low-cost agronomic practices such as crop residue management, intercropping, crop rotation and shifting cultivation to safeguard soil fertility in food crop systems. Evidence further shows that the use of improved seeds, mineral fertilizers and depending on the location, external organic inputs such as manure and compost, is more prevalent among three groups of Mozambican smallholder farmers: independent vegetable producers, farmers participating in contract farming schemes and those residing in districts bordering Malawi, Zambia and Zimbabwe. Additionally, despite expressing strong willingness to invest in these inputs, farmers’ access to and use of these inputs are hindered by a complex set of systemic barriers, including unfavorable market conditions which limit profitability and intensify risk; institutional limitations such as credit constraints and human capital limitations; liquidity constraints; challenges associated with key ISFM components; an existing culture of dependency shaped by past experiences of farmers with free inputs; and entrenched perceptions among both farmers and professionals that Mozambican soils are inherently “fertile” or “virgins” and “fertilizers destroy the soil”. Given these findings, the study recommends that interventions aiming to promote sustainable land use practices like ISFM in land-abundant contexts of SSA like Mozambique, should prioritize addressing these systemic barriers to ensure sustained adoption of these practices. For instance, to raise productivity in food crop systems, agrarian interventions should adopt a holistic value chain approach which goes beyond the production phase to strengthen other critical segments of the value chain, such as extending agro-dealer networks to major production areas, as well as enhancing access of smallholder farmers to output markets that offer stable and fair prices. Again, there is the urgent need to intensify education and raise awareness among both farmers and professionals to dispel the widespread misconception that fertilizers damage the soil and on the need for farmers to implement ISFM as a package rather than in isolation. Addressing these systemic constraints holds an enormous prospect for fostering the sustained uptake of sustainable intensification practices like ISFM in Mozambique. Drawing on the findings from chapter 2, which indicates that Mozambican smallholder farmers seldom invest in purchased inputs for food crops, chapter 3 utilizes the same data to assess the technological and technical efficiency gains associated with existing farmer practices of integrating improved versus recycled seeds with agronomic practices, including crop rotation, intercropping and crop residue management in food crop systems. Relying on an endogeneity-corrected stochastic frontier and metafrontier functions to analyze the quantitative data, results from this first-stage analysis were contextualized and reinforced with evidence from the qualitative data. The findings suggest that farm households who integrated improved seeds with agronomic practices achieve a modest technological advantage (4%) relative to their peers who integrated recycled seeds with these same practices. Nonetheless, the results reveal no significant difference in technical efficiency between both groups. Instead, farm households in both groups performed these agronomic practices so poorly, such that each group could expand its total farm production by more than 50% simply by implementing these existing agronomic practices more efficiently. Consequently, the greatest potential for raising farm output in food crop systems in Mozambique lies in the capacity of resource-poor households to effectively implement these existing agronomic practices. Based on the findings, it is recommended that programs aiming to boost productivity in food crop systems in Mozambique should prioritize building the capacity of farm households to enable them implement these agronomic practices more efficiently. Encouraging resource-poor farmers to strictly adhere to recommended agronomic protocols, such as selecting the right crop mixes for intercropping and rotation, retaining crop residues on the field and using inoculants to boost nitrogen fixation in legumes can considerably enhance soil fertility and support productivity in subsequent crops. Given the increasingly aging farming population in Ghana and the urgent need for evidence-informed policies aimed at attracting and retaining the country’s growing youth population in agriculture, chapter 4 of the thesis relies on a nationally representative data from the GLSS and GSPS to evaluate how the age of resource-poor farmers influence their farm-level decision-making in terms of technology adoption and managerial performance. Drawing on a three-decade dataset from cereal-producing households and guided by the definitions of youth provided by the African Youth Charter and Ghana’s National Youth Policy, farm households were categorized into three age-based groups: youth (15–35 years), middle-aged (36–59 years) and aged (60 years and above). The findings indicate that farm operator age does not have a statistically significant effect on the type or level of agricultural technology adopted by farming households in Ghana. This finding remains robust even when the analysis is disaggregated by cereal type (i.e., maize, rice, millet and sorghum). However, the findings reveal marked differences in managerial performance between younger and older farmers, with the youth exhibiting greater managerial proficiency relative to their older peers. These findings suggest that when offered equal access to productive resources, younger farmers are better equipped to drive agricultural productivity growth in Ghana, thereby significantly contributing to the sector’s growth in the country. The study recommends for policymakers to pursue youth-focused agrarian initiatives that ensure easy access of the youth to productive resources such as land, credit and improved technologies, aimed at enabling younger farmers to leverage their potential in driving agricultural productivity gains. Overall, the findings of this thesis bring to the fore the existing systemic barriers that continue to obstruct smallholder investment decisions in sustainable land use practices like ISFM in land-abundant contexts like Mozambique and further underscore the urgent need for policy measures aimed at addressing them. It further stresses that the greatest potential for sustainably raising farm performance in low-input food crop systems in Mozambique lies in the ability of resource-poor farmers to implement these low-cost agronomic practices more efficiently. Finally, the findings highlight the need to focus on enhancing the managerial skillsets of farm operators across all age groups, especially the younger ones, rather than just concentrating on technological advancements.