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WinDASI Exercise NGAMO 3: Economic Impacts of an Irrigation and Mechanization Project 










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    WinDASI Exercise: NGAMO 2: An irrigation project. Impacts of irrigation and mechanisation on traditional farms  2005
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    This module presents NGAMO2, a practical step-by-step exercise in Cost Benefit Analysis (CBA) of investment projects, to be run with the WinDASI software. (the word NGAMO comes from the name of the zone of the original project that was located in Myanmar). The goal of this exercise is to analyze the technical feasibility of the irrigation project at farm level. The project analyst has to solve two major problems due to the expansion of production generated by the new irrigation scheme: excess de mand of labour compared with the supply available form the farm household and a lack of draught animals in the peak periods. The reader will see how project constraints are solved and which are the main changes with versus the without project situations (WiP versus WoP). Moreover, a new constraint is introduced, which is the financing constraint, with the purpose to analyze the economic impact of the credit component by calculating project indicators such as incremental NPV, IRR and Benefit/Cost Ratio and comparing them before and after the financing.
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    WinDASI: A Software for Cost-Benefit Analysis of Investment Projects. Installation Note   2005
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    This module contains the WinDASI software and a note that illustrates how to carry out the installation of WinDASI on your personal computer. WinDASI is a software for Cost-benefit Analysis (CBA) of investment projects that allows the analysis of the financial and economic viability of investments. In particular, it facilitates the systematic storage of data for Cost-Benefit Analysis and allows to calculate: a) flows of physical quantities of outputs, inputs and investment items; b) flows of cur rent, discounted and cumulative costs, benefits, and net benefits; c) flows of incremental (With-Without project) current, discounted and cumulative net benefits; and e) indicators of financial and economic viability such as the Net Present Value (NPV), the Internal Rate of Return (IRR), the Benefit/Cost Ratio, (BCR), the Switching Values (SVs) and Sensitivity tests. Instructions are provided on how to carry out calculations for the different components of an investment project, notably: plans, zones and projects (i.e. at different levels of aggregation). In addition, the software can deal with comparisons of different projects and alternative scenarios (e.g. with–project versus without-project), and normal and phased modes of calculation.
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    WinDASI Exercise: NGAMO1: An Irrigation Project. Impacts of Irrigation on Traditional Farms  2005
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    This module presents NGAMO1, the first of the four practical step-by-step exercises in Cost Benefit Analysis (CBA) of investment projects, to be run with the WinDASI software (the word NGAMO comes from the name of the zone of the original project that was located in Myanmar). The goal of this module is to analyze the technical feasibility at farm level of an irrigation project. That means processing the data set on the activities of a specific farm model for both With-Project and Without-Project (WiP and WoP) situations. The analyst addresses feasibility issues in terms of labour requirements and needs of draught animal services at farm level, whose lack is one of the main constraints identified by the project. Moreover, the analyst calculates costs, benefits, net cash flow and incremental net cash flow at farm level over the duration of the irrigation project, identifying also the main changes related to the WiP versus WoP situations.

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