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investigation of the extent to which purity, rather than price, is the equilibrating mechanism in this market. If purity is an … important equilibrating mechanism, then provision of heroin of constant purity to trial participants would yield important … health benefits to those participants. However, if purity on the black market is increased in economic retaliation against a …
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no significant differences between the strategies analyzed, suggesting that the purity in each style is not as developed …
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Rules-based portfolio sorts are commonplace for the evaluation of style anomalies. An unfortunate consequence of constructing portfolios on a target style is the unintended loading on non-target factors. A plausible approach is the application of optimisation to maintain target factor loading...
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