The Poor and poorer are the ...

The Poor and poorer are the comparative(relative) word depends upon country to country.the relationship the very poorest people have with growth is different from that for the poor as a whole (relative). The poorest in terms of relative severity.A more in depth analysis would involve identification of the $1/day poor and extreme poor (usually at 75 cents), Increasing access to WASH can contribute significantly to improving health outcomes, and is particularly important to efforts aimed at reducing the burden of disease and malnutrition, as well as relieving pressure on the healthcare system as a whole.   WASH indicators, including number of water sources, population with dedicated hand washing facility in the household, and percent of population using open defecation as main and regular source. Basic ​sanitation is ​usually ​associated ​with ​access to ​drinking water WASH is an acronym that stands for "Water, Sanitation and Hygiene". Universal, affordable and sustainable access to WASH is a key public health issue within international development and is the focus of Sustainable Development. Access to water, sanitation and hygiene (WASH) are crucial for good outcomes in health, nutrition, education and livelihoods. Furthermore, access to water and sanitation have been recognised as human rights.Increasing access to WASH can contribute significantly to improving health outcomes, and is particularly important to efforts aimed at reducing the burden of disease and malnutrition, as well as relieving pressure on the healthcare system as a whole.

To eradicate poverty, it is crucial that the benefits of investment in WASH reach the entire population, particularly the poorest and most vulnerable. Unfortunately, overall progress towards the MDG targets for water and sanitation has masked significant and growing disparities in access between countries, rich and poor, and urban and rural communities.

Recognise that universal access to WASH is an essential component of an integrated approach to tackling poverty, hunger, ill-health and inequality. 3 Recognise that achieving and sustaining universal access to WASH depends on establishing accountable systems for equitable and sustainable management of water resources.

All the countries are pro-poorest in an absolute sense.A number of countries are also relatively pro-poorest. The growth elasticities of poverty indicate how effective growth is in translating into poverty reduction.it is necessary to define what is meant by ‘pro-poor growth’ (PPG). There are two conceptual understandings. A relative concept of PPG refers to growth in which the incomes of the poor increase disproportionately (such that inequality decreases). An absolute concept of PPG in turn focuses on the growth rates among the poor, defining growth as pro-poor if poverty is reduced.

Those countries who experienced significant poverty reduction, high rates of growth and significant increases in their inequality (El Salvador, Ghana, Senegal, Uganda, Vietnam, India, Brazil, Bangladesh). These countries were associated with an upward sloping Growth Incidence Curve suggesting that the income growth of richer percentiles was faster than the income growth of the poorer percentiles;

Those who experienced moderate rates of poverty reduction and growth, and where inequality declined (Burkina Faso, Bolivia, Indonesia, Romania, Zambia). This pattern of development was associated with downward sloping growth incidence curves implying that the income of households in the lower percentiles grew by more than income in the top percentiles