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International migration has been a major influence on the economic and social development of nations. Nevertheless, a vast majority of the global population continues to reside in their country of birth. While income/wealth differentials between states create centrifugal forces responsible for migration, impediments to international mobility of human, financial, physical and social capital assets work in the centripetal direction. This paper reviews a large segment of the extant literature on international migration to probe economic influences on people's international mobility and immobility decisions. It aims to refine and extend the neoclassical foundations of migration theory and to outline howpotentially complex decision mechanisms used by potentially mobile economic agents may be modified to simplify the complexity inherent in such choices so that immobility is often a default outcome of indecision.

International migration has been a major influence on the economic and social development of nations. Nevertheless, a vast majority of the global population continues to reside in their country of birth. While income/wealth differentials between states create centrifugal forces responsible for migration, impediments to international mobility of human, financial, physical and social capital assets work in the centripetal direction. This paper reviews a large segment of the extant literature on international migration to probe economic influences on people's international mobility and immobility decisions. It aims to refine and extend the neoclassical foundations of migration theory and to outline how potentially complex decision mechanisms used by potentially mobile economic agents may be modified to simplify the complexity inherent in such choices so that immobility is often a default outcome of indecision.

AbstractInternational migration governance can be represented as a system set up to manage cross‐border mobility of people in the interest of participating states; mostly by means of bilateral agreements between countries and top‐down, UN‐mediated multilateral and EU‐directed plurilateral arrangements. The latter have often failed to work effectively, so we ask if there is another way. We argue that Australia and New Zealand, together with several Pacific nations, form the ANZ Pacific Migration Governance System (ANZPAC), which provides an alternative way of regional migration governance. We call it an idiorhythmic system of governance: a bottom‐up arrangement between states using devolved and/or self‐regulating coordinating mechanisms to allow participating states sufficient freedom to pursue their own agendas at a pace determined mostly uni‐nationally. ANZPAC facilitates enhanced mobility of migrants to and within the region while also helping to reticulate inflows of unauthorized immigrants. It offers interesting, albeit at times controversial, lessons for other countries.Polish Research Foundation NCNOPUS 10 research support scheme (research project 2015/19/B/HS4/00364 'The impact of wealth formation by economic migrants on their mobility and integration: Polish migrants in countries of the European Community and Australia').

Australia, like other democracies, has long sought to improve the efficiency and effectiveness of procurement for national defence. A recent review exhorted Defence procurement managers to exert greater "commercial discipline." Similar calls have been made in other countries. This paper tests such public sector emulation of commercial practice by comparing the relative effectiveness of procurement via in‐house arrangements; a public procurement agency detached from Defence; and privatized provision. We show that what matters is not public or private ownership but how ownership and management are integrated and what incentive structures are applied. (JEL H44)