the world economy. As globalization has heightened the competition for foreign aid among developing countries, Africa has been trying to improve its struggle to receive foreign aid by taking more responsibility at the regional and international level. In addition, Africa has created the ‘Africa Action Plan’ in order to obtain new relationships with development partners to share responsibilities regarding discovering ways to receive aid from foreign investors. Trade blocs and multilateral organizations The African Union is the largest international economic grouping on the continent. The confederation's goals include the creation of a free trade area, a customs union, a single market, a central bank, and a common currency (see African Monetary Union), thereby establishing economic and monetary union. The current plan is to establish an African Economic Community with a single currency by 2023. The African Investment Bank is meant to stimulate development. The AU plans also include a transitional African Monetary Fund leading to an African Central Bank. Some parties support development of an even more unified United States of Africa. International monetary and banking unions include: Central Bank of West African States Bank of Central African States Common Monetary Area Major economic unions are shown in the chart below. Regional economic organizations During the 1960s, Ghanaian politician Kwame Nkrumah promoted economic and political union of African countries, with the goal of independence. Since then, objectives, and organizations, have multiplied. Recent decades have brought efforts at various degrees of regional economic integration. Trade between African states accounts for only 11% of Africa's total commerce as of 2012, around five times less than in Asia. Most of this intra-Africa trade originates from South Africa and most of the trade exports coming out of South Africa goes to abutting countries in Southern Africa. There are currently eight regional organizations that assist with economic development in Africa: Economic variants and indicators After an initial rebound from the 2009 world economic crisis, Africa's economy was undermined in the year 2011 by the Arab uprisings. The continent's growth fell back from 5% in 2010 to 3.4% in 2011. With the recovery of North African economies and sustained improvement in other regions, growth across the continent is expected to accelerate to 4.5% in 2012 and 4.8% in 2013. Short-term problems for the world economy remain as Europe confronts its debt crisis. Commodity prices—crucial for Africa—have declined from their peak due to weaker demand and increased