The best way is reading the text I linked over it, which includes proof, analysis, and far more information than I can put in a single comment.

However, the extreme shorthand, is that competition results in monopoly, and monopoly seeks new international sources of raw materials and labor that is cheaper, using predatory loans and exporting industrial Capital directly.

The US, for example, has huge influence over the IMF, and makes the bulk of its value by producing in the Global South and lobbying to keep wages low.