This is an extremely complex question that is very difficult to answer here.  Essentially, our the world is becoming more gloabilzed (the process of globalization) economically.  Unlike economic imperialism from the 16th through 19th centuries, more developed countries are exporting raw materials and jobs to other countries where manufactured goods can be developed at a much cheaper cost.  Those developed countries are replacing those manufacturing jobs with more specialized service-based or tech jobs.   In effect, this should ultimately lead to an overall increase in the standard of living for all parts of the world.  Critics of globalization argue that the rate of new jobs developing is much slower than those jobs that are being exported.  This, in effect, is the most significant effect of imperialism on the world today.