Characteristics of Private‐Sector Tractor Service Provisions: Insights from Nigeria

Agricultural mechanization has been integral to agricultural transformation during periods of development. Mechanization‐service provisions can be constrained by economies of scale, seasonality, limited mobility, or heterogeneous inputs quality. However, information has been scarce regarding how the private sector has overcome these constraints especially in countries like Nigeria that are at low agricultural development stages. We present the results of a small survey of tractor owner‐operators conducted in Nigeria. We find that existing private‐sector tractor‐hiring services in Nigeria are indeed constrained. However, we also find heterogeneity among these owner‐operators. In particular, those who buy tractors from private markets or from private individuals are more efficient than those who receive tractors through government programs, providing services to a greater area at lower costs, including during off‐peak seasons, sometimes selecting machinery types according to soil types. We conclude with a discussion of some policy implications.     

Price Transmission in Nigerian Food Security Crop Markets

This paper comprehensively examines price transmission from world, neighbour country, and internal commercial hub markets to Nigerian urban markets, as well as from urban to rural markets within the country, for seven key food security crops (maize, millet, sorghum, rice, cassava, yams and cowpeas). There are three key findings: (i) tradability matters for price transmission, but tradability varies across crops and regions. The strongest international linkages are with neighbouring countries. Rice price transmission is high across all markets, while coarse grain price correspondence is low with world prices but high with neighbour country market prices; (ii) our results imply that local conditions matter for price transmission, and are relatively more important than trade for some crops (e.g. yams, cassava) than others (e.g. imported rice, maize); (iii) larger than expected long‐run price transmission parameters in world and neighbour countries for rice and coarse grains suggest that, in these select markets, there are either large transactions costs or quality premiums that vary systematically with border prices, and/or mark‐ups captured by traders with market power.     

Climate Risk and Technology Adoption in the Midstream of Crop Value Chains: Evidence from Nigerian Maize Traders

Climate induced events exacerbate food production and distribution risks, posing a threat to global food security. Though many studies focus on farmer adaptation to climate change, there are few studies of actors in the middle of agricultural value chains such as traders, logistics providers, and processors. The activities of these actors, referred to as the ‘hidden middle’, are key determinants of the prices received by farmers and the price and quality of food products for consumers. We explore how climate events and risk perceptions affect the adoption of value‐adding and damage control strategies among maize traders in Nigeria, Africa’s largest economy and most populous country. We find consistent evidence that climate events and climate risk perception discourage the adoption of value‐adding practices including storage. This potentially affects the availability and price of maize for consumers (household and industry) in the lean season. However, once traders store maize, climate risk does not affect the adoption of damage control, but training and social networks do. These findings suggest that actors in the midstream of food value chains are responding to climate change and more attention needs to be paid to these actors to maintain the availability of affordable and safe maize products throughout the year. There is also a need for strategies to reduce the risks of trading activities due to climate change.     

Are farmers ‘efficient but poor’? The impact of crop choices on technical efficiency and poverty in Nigeria

We test the ‘efficient-but-poor’ hypothesis by estimating the determinants of smallholders' choice over cash or food crops and whether their crop choice affects technical efficiency and poverty using the national household panel data in Nigeria. We employ the stochastic frontier analyses correcting for sample selection about farmers' crop choice. Our results indicate that smallholders are generally efficient in their resource allocations. A treatment effects model is employed to estimate farmers' crop choice in the first stage and the impact of their choices on technical efficiency and poverty outcomes in the second stage. The results show that farmers' access to free inputs, non-farm income and the use of seeds from the previous growing season are important determinants of crop choice. The adoption of cash crops by food-crop producing households will not generally reduce poverty, although it will improve technical efficiency marginally. However, if cash crops are commercialised, poverty tends to decline.     

The drop and collect survey among industrial populations: theory and empirical evidence

This paper examines the effectiveness of drop-and-collect-survey (DCS) method in improving response rates among organisations. It proposes a theory for its effectiveness and advances a number of propositions relating to its usage among organisations. Subsequent analyses, using empirical evidence from two separate DCS-based studies in Nigeria and Germany, suggest that the DCS results in significantly higher response rates among organisational respondents compared to mail questionnaires. These improved response rates are more likely to be achieved among smaller organisations and through direct, face to face, contact with the target key informant. Combining DCS with prenotification showed only a small, but positive effect. Support was also found for the hypothesised greater effectiveness of the DCS among high-technology firms relative to their low-technology counterparts. Based on the proposed theory and the empirical findings, a DCS decision and implementation framework is presented and directions for future research suggested.     

The child health effects of terrorism: evidence from the Boko Haram Insurgency in Nigeria

This study examines the effect of terrorism on height-for-age z-scores, weight-for-age z-scores, weight-for-height z-scores, stunting, and wasting. Using the Boko Haram Insurgency, it compares outcomes in Boko Haram high-active and low-active areas. A difference-in-difference and regression model identifies the extensive and intensive margin effects respectively. The study uses data from the Nigeria Demographic and Health Survey and the Global Terrorism Database. The results suggest that the Boko Haram Insurgency reduces weight-for-age and weight-for-height z-scores and increases the probability of wasting. The evidence suggests that policies targeting healthcare services may mitigate the long-term impacts of the Boko Haram Insurgency on human capital production.     

Descending the energy ladder? Oil price shocks and domestic fuel choices in Kano,Nigeria

In recent years, the densely populated region around the burgeoning city of Kano in northern Nigeria has been the focus of much academic enquiry into the links between vegetation modification and fuelwood production and consumption. While many scholars have praised the socio-economic and ecological sustainability of Kano's rural–urban interface, arguing that indigenous agro-forestry systems will continue to resist urban fuelwood pressures for many years to come, other less optimistic observers have warned that exposure to a rapidly changing world economy is challenging traditional resource management systems like never before. Focusing on the case of Kano and its resource hinterlands, recent field-based evidence presented in this paper suggests that the latter supposition may be gaining increasing currency. In peri-urban regions, the rising prices of kerosene and other petroleum-based domestic fuels, coupled with the economic knock-on effects of a current petro-boom, are making fuelwood a much more attractive alternative as a domestic fuel choice. As lower and middle-income households shift away from commercial petroleum-based energy sources in favour of cheaper and more readily available biomass alternatives, it may be placing increased pressure on woodland resources and Kano's surrounding rural ecology: in the hinterlands of the city, local perceptions of research informants suggest that deteriorating economic conditions have driven some individuals to ‘step up’ fuelwood production to meet rising peri-urban demands. Although the intention of the paper is not to perpetuate crisis narratives or to suggest that fuelwood demand is causing runaway deforestation, the evidence presented does suggest that as conventional fuels become progressively more expensive, the poorest and most disadvantaged households may find it increasingly challenging to meet their basic energy needs.     

尼日利亚不同地区反刍动物市场定价行为研究

本文对尼日利亚牛羊市场的空间价格一体化程度进行了检验，试图运用双变量自回归时间序列模型验证寡头垄断市场上牛羊价格的非竞争性定价行为。论文分别对牛羊市场的合谋、歧视性、价格领袖和竞争性定价行为进行了经验性检验。结论表明，在牛羊价格形成中，博尔诺（Borno）和索科托（Sokoto）州的牛羊价格领先于克里斯河（CrossRiver）、依莫（Imo）、卡诺（Kano）、拉各斯（Lagos）、尼日尔（Niger）和奥约（Oyo）州这些地方市场的价格。有关证据也支持共谋定价一般与市场的集中有关的判断。     

The unethical practices of accountants and auditors and the compromising stance of professional bodies in the corporate world: Evidence from corporate Nigeria

Investors in Nigeria have lost several billions of dollars through the collusion of accountants and external auditors with companies’ management and directors to falsify and deliberately overstate companies’ accounts. As a consequence of unethical practices by accountants and auditors, which have resulted in the distress or occasionally the closure of companies, some indigenous Nigerian Managing Directors of multinational corporations such as Lever Brothers Nigeria Plc and Cadbury Nigeria Plc have been sacked and replaced with expatriates. Some companies placed under receivership have also lost billions of dollars due to professional misconduct by their official receivers. Contrary to the claim of ‘protecting the public interest,’ accountants and auditors may be partly responsible for cases of distress and closure of companies and banking institutions in Nigeria. However, the various Statutory Provisions and Acts relating to companies and professional bodies all place the responsibility on the accountants and auditors to detect and report to the regulators cases of suspected fraud and accounting malpractice. Through detailed consideration of cases of fraud, falsifications and deliberate overstatement of companies’ accounts, this paper examines the claim that the professional bodies are capable of protecting the public interest. It utilizes archival documents to provide evidence that suggests professional misconduct by accountants, particularly the members of the Institute of Chartered Accountants of Nigeria (ICAN). The paper provides further evidence that ICAN has been reluctant to either investigate or sanction its erring members. The paper posits that the reluctance or inability of the ICAN's “Investigation and Disciplinary Machinery” to either investigate or discipline the erring accountants and auditors suggests that whether by design or default, the ICAN's “Investigation and Disciplinary Machinery” operates to shield the activities of its erring members in accountancy firms from critical scrutiny.