In this introduction to the special themed section, ‘Theorizing transnational labour markets: economic‐sociological approaches’, I introduce the reader to the topic and give an overview of the four contributions. The terms ‘global labour market’ and ‘transnational labour market’ are broadly used to account for contemporary social phenomena as diverse as the ever‐closer integration of China or India, with their huge labour forces, into the world economy, the off‐shoring of specific operations of MNCs to countries with cheap labour, or cross‐border labour migration. In most of these cases, the existence of global or transnational labour markets is taken for granted by the media, consulting agencies and other economic actors. However, scholars in labour market research and cross‐border migration alike have largely ignored the categories of global or transnational labour markets. Thus far, it remains unclear what these terms really mean and how we should address them theoretically. The aim of this themed section, therefore, is to view cross‐border labour migration through an economic‐sociological lens and thus bring into dialogue migration and labour market scholarship. By introducing a transnational perspective into labour market research, we hope to make a useful contribution towards theorizing on cross‐border labour markets and thereby overcome the methodological nationalism that seems to have crept into this area of scholarship.