One could argue, as was mentioned earlier, that high-skilled workers would tend to migrate anyway, on their own, and also because developed countries were keen to attract them. What LDCs should perhaps demand is greater market access for low-and semi-skilled workers, for whom the markets of developed countries have tended to remain highly restrictive until now (more on this in Section 11.4.6). As a recent study (IOM and ACP Observatory on Migration 2012) points out, because of climate change the propensity for South-South migration could rise in the future.