Abusing the system?

Abusing ETFs

Do ETFs, one of the most popular investment products in recent times, benefit individual investors? Using data from one of the largest brokerages in Germany, we find that individual investors do not improve their portfolio performance, even before transactions costs, by using these passive products. Using counterfactual analysis, we show that this occurs mostly from buying ETFs at “wrong” point...

Abusing parents and children

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[The abusing parents: psychological approach, sociological approach].

8 Using and Abusing Variables

One fundamental difference between mathematical communication and most non-mathematical communication, is the pervasive use of variables: letters, subscripted letter, or other symbols that represent mathematical objects that are unspecified or not fully specified. Variables provide the skilled mathematical communicator with an enormously powerful tool to communicate complex ideas effectively. B...

A Recommendation for the Management of Illness Anxiety Disorder Patients Abusing the Health Care System

Introduction. Illness anxiety disorder (IAD) entails a preoccupation with having a serious, undiagnosed illness in which somatic symptoms are, if present, mild in intensity (American Psychiatric Association, 2013). Case Report. This is a case of seventy-three-year-old Saudi man who started visiting the primary health care center around twenty-five years ago. With concerns of having cancer, the ...