Ethno-racial identity (politics) by law: “Fraud” and “choice”

Following an introduction to the changes in how ethno-racial identity is conceptualized in the social sciences and humanities by the destabilization of categorical frameworks, the author looks at how law reacts to these discussions and paradigm shifts, and argues that legal and administrative approaches face severe linguistic and conceptual limitations by operating within a “choice” and “fraud” binary. The article then questions if the free choice of identity exists as a principle of international minority protection law, a legal field that arguably represents a global political and ethical consensus. The author makes two claims. First, according to the basic tenet of legal logic, a proper right to free choice of identity allowing people to opt out of racial, ethnic, or national (minority) communities would necessitate the freedom to opt in to the majority or to any chosen group. The second claim, however, is that international law would not actually construct an approach to opting in. Thus, the right to free choice of identity is not an autonomous, sui generis right under international law.     

Sudden suffocation by surgical sponge retained after a 23-year-old thoracic surgery

A 70-year-old male patient with a 23-year-old history of right lower lung lobectomy for primary pulmonary adenocarcinoma (T1 N0 M0) presented with recurrent bronchopneumonia and purulent sputum. Pleural callus, lung abscess, bronchopleural fistula, and stitch granulomas were confirmed by chest x-ray, computed tomography scan, and bronchoscopy in the background of his complaints. An attempt to remove the bronchial purulent discharge and tissue sampling was made by using a flexible bronchoscope. The area of the lower trachea suddenly became clogged during bronchoscopic removal of the suspected piece of tissue (which later turned out to be organizing surgical gauze). The resuscitation following ventricular fibrillation failed to save the patient's life. The forensic postmortem examination confirmed the position of the foreign body extending from the abscess cavity, crossing the midline at carina and obstructing the lower trachea. This foreign body was a remnant of the surgical gauze left behind during a thoracic surgery 23 years ago.     

Changes in earnings inequality and labour market segmentation: Metropolitan Santiago 1969–78

Changes in earnings inequality are examined in this article through an eclectic approach allowing for differences in human capital earnings function by labour market segments. Several findings are of interest. The first are the components of earnings inequality changes, these being, in order of importance: changes in the within segments inequality, changes in the relative share of the informal sector segment, and changes in relative income between segments. Second, these changes are found to be the result of labour market liberalisation policies such as abolition of both minimum wages and labour turnover legislation in the formal sector, the promotion of self‐employed activities in the informal sector, and, the selective mobility pattern between segments.     

Optimal team and individual decision rules in uncertain dichotomous situations

In this paper, we consider the problem of determining the optimalteam decision rules in uncertain, binary (dichotomous) choice situations. We show that the Relative (Receiver) Operating Characteristic (ROC) curve plays a pivotal role in characterizing these rules. Specifically, the problem of finding the optimal aggregation rule involves finding a set ofcoupled operating points on the individual ROCs. Introducing the concept of a team ROC curve, we extend the method of characterizing decision capabilities of an individual decisionmaker (DM) to a team of DMs. Given the operating points of the individual DMs on their ROC curves, we show that the best aggregation rule is a likelihood ratio test. When the individual opinions are conditionally independent, the aggregation rule is a weighted majority rule, but with different asymmetric weights for the yes and no decisions. We show that the widely studied weighted majority rule with symmetric weights is a special case of the asymmetric weighted majority rule, wherein the competence level of each DM corresponds to the intersection of the main diagonal and the DM's ROC curve. Finally, we demonstrate that the performance of the team can be improved by jointly optimizing the aggregation rule and the individual decision rules, the latter possibly requiring a shift from the isolated (non-team) optimal operating point of each DM.Research supported by NSF grant #IRI-8902755 and ONR contract #N0014-90-J-1753.