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Large-scale Land Investments and (Un)Employment Questions in Africa: Quantitative and Qualitative Insights from Nigeria
Get PDFSustainability of waste glass powder and clay brick powder as cement substitute in green concrete
Get PDFOf recent, concerns on the need for a sustainable and clean environment have of recent heightened awareness about the need for recycling and reusing of solid wastes that are major source of environmental pollution. Wastes are rising due to rapid population growth, urbanization, industrialization, and increased in construction activities, and the conventional management practice of treating these
wastes, especially in developing nations, is open disposal on landfills and dump sites which is deemed unsafe and unsustainable. Therefore, there is need for sought alternatives that will help provide effective waste management practice thereby ensuring a cleaner and greener environment. Research has shown that some wastes from the industries and households can be recycled and reused
as concrete constituents in the production of green concrete, that is, concrete produced using alternative and/or recycled waste materials to reduce natural
resources consumption, environmental impact, and energy use. Moreover, reports also pointed out that concrete is the most used construction material contributing large part of worldwide greenhouses (GHG) emissions. Consequently, reusing waste in concrete production create alternative solution for effective waste management and limiting the impact of concrete production on the environment. This chapter discusses the prospect of recycled clay brick waste, ground into powder and reuse as construction materials to substitute cement in producing green moderate strength concrete for use in developing nations and recommendations
to deepen material recycling and reuse for future developmental needs
Financial Deepening and Manufacturing Sector Performance in Nigeria: Evidence from Bank, Non-bank and External Financing Sources
Get PDFThe paper investigated the effect of financing deepening on the performance of the manufacturing sector, using a time series data from 1981 to 2019. The study employed the bounds testing co-integration approach and confirmed the existence of long-run convergence relationship between manufacturing value added and the regressors. The result of the empirical investigation confirms the finance-growth hypothesis. The bank financial deepening significantly influences the manufacturing sector performance. However, the non-bank financial deepening and external financing do not significantly influence the manufacturing sector performance in Nigeria. This evidence can be linked to the fragmentation of the shareholding structure of few leading firms and considerable number of firms operating in the market space but not listed on the stock exchange market. Also, the highly skewed FDI Inflows towards the extractive industries leave less financing options for the manufacturing sector. It is necessary to note that the manufacturing sector performance does not respond significantly to the lending interest rate โ a situation not unconnected to the high cost of capital in the economy. Finally, the paper recommended the need for deliberate policies that aim to deepen the financial sector via intermittent intervention by the monetary authority and mandating compulsory financing of the real sector by the retail commercial banks to the tune of certain proportion of their total loan creation
