Thursday, January 17, 2013

Why international poverty line?


The advantages and disadvantages of using a concept such as an international poverty line... Do you agree that a real annual income of $370 in, say, Mexico has the same meaning as in, say, Nigeria or Thailand?

The International Poverty Line is a number decided by the World Bank in 1985 to measure the number of people living in extreme poverty. It represents the minimum level of income  necessary to achieve an adequate standard of living in a given country. Determining the poverty line is usually done by finding the total cost of all the essential resources that an average human adult consumes in one year. This approach is needs-based in that an assessment is made of the minimum expenditure needed to maintain a tolerable life. An international figure for this was calculated by documenting each country's individual standards for poverty and converting the number to dollars. This amount came to between $275 and $370 per year, or around $1 a day, leading to the name "the dollar-a-day line." Hence internationally, people earning below a dollar a day are considered to be under extreme poverty line.  The number was revised to $1.08 PPP (Purchasing Power Parity) in 1993. Purchasing power parity is the number of units of foreign currency required to purchase the identical quantity of goods and services in the local market as $1 would buy in the United States.  This is only an estimated number since PPP varies greatly depending on the value of currency and cost of goods and services in a country.
The advantages of the concept of poverty line is that it is useful as an economic tool with which to measure such people and consider socioeconomic reforms such as welfare  and unemployment insurance to reduce poverty.
However, using a poverty line is problematic because having an income marginally above it is not substantially different from having an income marginally below it. This may lead to assuming that the population slightly above the poverty line as not being poor might induce negative assumptions about the condition of the country. To overcome this problem, poverty indices are sometimes used instead. A poverty threshold relies on a quantitative, or purely numbers-based, measure of income. If other human development-indicators like health and education are used, they must be quantified, which is not a simple (if even achievable) task.
Another disadvantage of poverty line is limiting definition of poverty to lack of income in cash. In-kind gifts, whether from public or private sources, are not counted when calculating a poverty threshold. For example, if a parent pays the rent on an apartment for an adult daughter directly to the apartment owner, instead of giving the money to the daughter to pay the rent, then that money does not count as income to the daughter. If a church or non-profit organization gives food to an elderly person, the value of the food is not counted as income to the elderly person.  The official poverty measure counts only monetary income. It considers antipoverty programs such as food stamps, housing assistance, the earned income tax creditmedical aid and school lunches, among others, "in-kind benefits" -- and hence not income. So, despite everything these programs do to relieve poverty, they aren't counted as income.
Poverty line has another disadvantage in particular for understating poverty, by using an outdated "basket of goods" to set the standard. While cost of these goods is adjusted for inflation every year, the basket of goods itself remains the same. It excludes the cost of items that were rare among poor Americans in the 1950s, but which are now common, such as a telephone, a car and a microwave oven
Furthermore, poverty tends to be cyclical. Thus, the poverty line indicates only how many people are poor at any one point in time. It does not report the number of people who will experience poverty during their lifetimes. Even in developed countries such as U.S. for example, roughly 12%-13% fall below the poverty line in any given year, but roughly 40% will experience poverty at some point over a ten-year time span.
Real annual income of $370 in, say, Mexico does not have the same meaning as in, say, Nigeria or Thailand because of the differences in exchange rates and purchasing power of the country.  Although expressed as fixed amount of $370, the differences in exchange rates of each country will alter the value in the corresponding national currency. For instance, 1 US $ at current is 12.5 Mexican Peso, 150 Nigerian Naira and 32.2 Thai Bahts  which are different amounts relative to the living standards and per capita income of each country.  Further more, use of that particular amount may not be able to purchase similar goods of similar quantity, in other words may not have same purchasing power. For example, a particular TV set that sells for 8,000 Nepali Rupees (NRs) in Kathmandu should cost 5,000 Indian Rupees (IRs) in Delhi when the exchange rate between Nepal and India is 1.6 NRs/IRs. However in reality due to conditions of transportation, taxes and income status of people, the price of that same TV increases in Nepal and thus the purchasing capacity of Nepalese decreases. As such 8000, NRs which amounts to 107 US$ does not have the same meaning in Nepal as in India or in any other country elsewhere.

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