the sample is broken into Less-Poor (GDPPC> $1,360) and Very-Poor (GDPPC<$1,360) halves, based on the median of GDPPC.
In the primary model, we correlate GDPPC and EQUALITY with WATER with several included controls that would reasonably seem to be related to the development of high-level water systems.
WATER and GDPPC are primary measures of development and, as such, omitting GDPPC from the INCIDENTS and DEATHS equations would create the possibility of the WATER variable capturing not just the pure effect of that variable on INCIDENTS and DEATHS but also the effects of other elements of the development process.
same year as MANGROVE, per length of coastline (km) (FAO, 2002; WRI, 1994) AGDPAP Agriculture value added divided by population engaged in agriculture (constant 1987 US$/persons), same year as MAGROVE (FAO, 1997; World Bank, 1998) GDPG GDP growth (annual %), same year as MANGROVE (World Bank, 1998) GDPPC GDP per capita (constant 1987 US$/person), same year as MANGROVE (World Bank, 1998) ROADS Percentage of paved roads, same year as MANGROVE (World Bank, 1998) COAST Length of coastline (km)(WRI, 1994).
The parameter estimate for GDPPC in models 3 and 4 is also significant and positive.
Variable Means by Country in Sample Country-Name GDPPC
REM ENR GCF AID Algeria 1791.