costs., Sanitation

Recall bias and cost data

I've been working on costing a few programmes recently where the intervention happened between 3-10 years ago. Both used household surveys asking people what they spent (in cash and in kind) towards the original infrastructure output (CapEx), towards regular operational and maintenance (OpEx) and irregular capital maintenance (CapManEx). It's got me thinking about the various… Continue reading Recall bias and cost data

funding & financing, Sanitation

Sanitation’s share of water sector aid is falling

I went to an interesting event at LSHTM last night run by Countdown 2030, on tracking aid flows to track global aid flows to reproductive, maternal, newborn and child health (RMNCH). Their dataset is here. Yet another reminder that the health sector is way ahead of the WASH sector on so many analytical questions, but… Continue reading Sanitation’s share of water sector aid is falling

costs., Sanitation

Incremental benefits from increases in sanitation service level

The Indus valley civilisation (c.2,000 BCE) coupled on-plot water supply from wells with the first known sewers. However, it was the Minoans (also c.2,000 BCE) who were the first to have piped water systems – I marvelled at the clay pipes and stone sewers at Knossos on Crete. The Minoans understood that piped water on… Continue reading Incremental benefits from increases in sanitation service level

Sanitation

Determinants of urban sanitation costs – ‘willingness to connect’ and scale effects

The Daudey 2017 paper (open access) I reviewed in this blog has a useful table (p.7) of 9  determinants of urban sanitation costs. I would tend to group them more simply into three headings as below - I won't go into these more here as the table in the paper is good. 1. Technology: technology type,… Continue reading Determinants of urban sanitation costs – ‘willingness to connect’ and scale effects

Sanitation

Sanitation as a public good and private asset

I often hear people say "sanitation is a public good". This is broadly true, in my view, but as with many things, it's a bit more complicated than that. A toilet (≠ sanitation) is a private good / asset. It is "rival", meaning you can't use it at the same time as someone else (in the same… Continue reading Sanitation as a public good and private asset