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Diffusions are widely used in finance due to their tractability. Driftless diffusions are needed to describe ratios of asset prices under a martingale measure. We provide a simple example of a tractable driftless diffusion which also has a bounded state space.
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empirical studies on barriers complemented by a citation analysis, which highlights the fragmentation of barrier research. We … propose the External environment Organization Group Individual barrier model (EOGI barrier model) aiming at a more … in the reviewed studies are classified according to the EOGI barrier model; external environment (external stakeholders …
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Large international differences in the price of labor can be sustained by differences between workers, or by natural and policy barriers to worker mobility. We use migrant selection theory and evidence to place lower bounds on the ad valorem equivalent of labor mobility barriers to the United...
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