Reviews past developments in information sharing for securities regulation, including cases where the US Securities Exchange Commission (SEC) initiated investigations into suspicious insider trading in US markets through accounts located outside the USA: the St Joe case, and SEC v Wang & Lee. Moves on to policy developments: the 1988 SEC policy statement, development of information‐sharing memoranda of understanding (MOU) with foreign counterparts. Looks at legal challenges to information‐sharing legislation, including the Elsag Bailey and Global Securities decisions; plus the increased international multilateral focus, involving IOSCO, G7, FATF, and OECD. Concludes with opportunities for increased enforcement cooperation and swifter and more creative efforts; recent examples include the Rentech case, the Oeschle actions, and the joint investigative database that SEC has established with the British Columbia Securities Commission.
Despite impassioned debates about immigration reform brewing in the U.S. government, researchers know remarkably little about how immigration policy shapes migration behavior. There is still much to learn about the composition of specific classes of admission, how long migrants stay in the United States, and the legal channels they follow to permanent residency or emigration. This paper takes a life course perspective on skilled migration to examine the micro-level processes and various pathways that lead to permanent settlement and emigration, and identifies legal status transitions as a key sorting mechanism in processes of immigrant selection. I find that migrants who successfully underwent a previous legal status transition were more likely to pursue permanent residence, but also saw a wider array of avenues to obtain a green card. The mismatch in some migrants' permanent settlement intentions and temporary legal status can lead to feelings of alienation and frustration in the immigration system and the U.S. labor market, driving some to emigrate or seek channels outside of the skilled migration program to procure a green card. The findings of this paper deepen our understanding of the processes that shape selection effects among immigrants and highlight the need for more robust and granular longitudinal data on legal status indicators.
This paper asks whether and how -during the COVID-19 pandemic at a time of considerable uncertainty -current events and announcements by governments and political leaders are associated with trends in Twitter conversation. Using Spanishlanguage tweets, we examine the changing dynamics of misinformation conversation about the COVID-19 virus, international border closures, and the socio-political reception of Venezuelan migrants returning home during the pandemic amidst an ongoing refugee crisis. We identify specific events and statements made by governments and political leaders and assess how they relate to trends in conversation about COVID-19 and migration misinformation. Findings from an analysis of timeseries data reveal that several specific announcements are associated with structural shifts in Twitter conversation, and that shifts in misinformation trajectories can take different forms.
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