What impact is the U.S. economic slowdown having on developing countries? Matt Homer of the World Politics Review writes that the weakening U.S. dollar is having an adverse effect on individuals in developing countries relying on remittances for large parts of their income. A bigger problem, however, is that the negative impact of the declining dollar is likely to go beyond the individual level. For a number of developing countries, remittances make up a significant percentage of total GDP, and several countries are already expressing concern that a decrease in remittances could hurt their entire economies.

In Tonga, for example, remittances account for just over 32 percent of the country’s total GDP. Yet because up to 80 percent of all remittances come from sources in the U.S., there is concern that continued declines in the U.S. economy “will hit Tonga extremely hard.” Economists in Nicaragua are also predicting that “any decline in the amount of remittances will undoubtedly affect consumerism within the Nicaraguan economy.” While around 40 percent of Nicaraguans receive remittances, most of which come from the U.S., economists estimate that almost 90 percent of remittance money sent to the country is spent in the local consumer economy.

To some the word "immigration" evokes an image of people standing in line at Western Union, waiting to wire money home to families for groceries and clothing. It happens thousands of times each day all over the world. All those remittances — the small amounts of cash wired across borders — add up to a whopping $300 billion a year.

Dilip Ratha believes this $300-billion industry can play an important role in international development. He's a World Bank employee who is working to make it easier for migrants to transfer money and direct the cost savings towards economic development in their own countries.

Skeptics argue that if remittances equaled development, Mexico would look like Switzerland. Ratha might argue that without remittances, Mexico's economy might look a whole lot worse. His new paper suggests that Africa could add as much as $3 billion to public coffers just by reducing the costs that migrants pay to send remittances. (Currently, charges on these cross-border money transfers can be as high as 10 percent.)

Ratha hopes to prove that hundreds of billions of remittance dollars can be funneled toward poverty alleviation by making simple policy changes.

His personal story has shaped his beliefs. In the U.S., he earns a salary that is 100 times what he could have earned in his birthplace of India, and his own remittances have helped build schools and pay medical bills there.

And while the negative impacts of immigration often make headlines, Ratha stresses that there are costs of not immigrating, too — costs borne by people living in poverty and by everyone in the global economy.

The World Bank has just published a statistical report on worldwide computer access and ownership, wondering, among other things, just how well developing countries are utilizing technological innovations. It found that

With [technology], labour and capital can be used and combined far more effectively. So it is good news that the bank finds that the use of modern technology in emerging economies is coming on in leaps and bounds.

Can migrant workers help to improve an economy? An article in the Economist says they can. According to the National Research Council with a high school education a migrant worker can contribute as much as 105,000 dollars in taxes, along with the contribution of their children once they are employed.

Migrants need health, skills, determination, a willingness to take risks and some entrepreneurial nous to take the plunge, which marks them out as special people. Moreover, migrants increasingly alleviate specific labour shortages in rich economies. Some economies could not function without foreign workers.

Cape Verde, Africa is feeling the affects of migration, says The New York Times. With roughly half of its population gone, family relations have become strained, families separated, and skilled workers lost. Its hard to complain, especially when migrant's remittances make up 12% of the nation's GDP.

Even as Cape Verdeans struggle to get out, others are migrating in. This, too, is characteristic of the age of migration — most “sending” countries are also “receiving” countries, underscoring how universal the phenomenon is. Nearly half the migrants from poor nations move to other poor nations.“Migration is probably more important to more people than it has ever been,” said Dr. Carling of the International Peace Research Institute, a nonprofit group in Oslo. “But what characterizes the world today is also the feeling of involuntary immobility.”

While the immigration debate in the United States is largely focused on the U.S.-Mexico border, an article from National Geographic looks a bit farther to the south. An estimated 400,000 migrants from Central America cross the border into Mexico every year, and though some stay to work in Mexico, most are headed for the U.S.

The economic prosperity of the U.S. has a strong pull effect on the Latin American poor, and the money that migrant workers send home to their families is having an increasingly large impact on their national economies. In Honduras, for example, remittances sent home from the U.S. made up one-fifth of the country’s gross national income in 2006.

“There is no solution to this,” a former Chiapas state official said wearily, after ticking off a list of southern border upgrade programs that have fizzled into ineffectiveness over the past decade. “You can put all the control measures down there that you want, but it’s not going to be fixed. The solution is to eliminate poverty.”

Today the Christian Science Monitor posted an article about how the declining dollar is affecting migrant workers in the United States:

Across the US, the falling dollar value has sent ripples through immigrant communities that send money to family overseas. As some currencies for developing countries have risen substantially against the dollar, many immigrant workers are increasing their workweek by up to 20 hours or taking second jobs. If the dollar's slide continues, the US may become less attractive to migrant workers, analysts say.

Interesting article about migration from one low-income country to another. In 2005, two World Bank researchers determined that an estimated two in five migrants traveled to urban areas of relative wealth outside rich countries.

One reason why outsiders pay little attention is that most poor migrants do not move far. Roughly half of all South-East Asian migrants are thought to have remained in the neighbourhood, and nearly two-thirds of migrants from eastern Europe and Central Asia have stayed in their own region. Nearly 70% of migrants from sub-Saharan Africa remain on their continent.

Migration experts believe climate change is a key contributor to such high migration rates:

“There is a direct impact on migration. You see people leaving sub-Saharan Africa in search of more habitable land,” says Mr Ameur, the minister for Moroccans abroad.