title: Cross-sectional and time-series momentum returns and market states

authors: Cheema, Muhammad A.

subjects: momentum returns

abstract: Recent evidence on momentum returns shows that the time-series (TS) strategy outperforms the cross-sectional (CS) strategy. We present new evidence that this happens only when the market continues in the same state, UP or DOWN. In fact, we find that the TS strategy underperforms the CS strategy when the market transitions to a different state. Our results also show that the difference in momentum returns between TS and CS strategies is related to both the net long and net short positions of the TS strategy.

text: Cross-sectional and time-series momentum returns and market states Recent evidence on momentum returns shows that the time-series (TS) strategy outperforms the cross-sectional (CS) strategy. We present new evidence that this happens only when the market continues in the same state, UP or DOWN. In fact, we find that the TS strategy underperforms the CS strategy when the market transitions to a different state. Our results also show that the difference in momentum returns between TS and CS strategies is related to both the net long and net short positions of the TS strategy.

year: 2017

title: Hypergeometric expansions of Heun polynomials

authors: Kalnins, Ernie G.

subjects: Science & Technology

abstract: The product of two Heun polynomials is expanded in terms of products of two Jacobi polynomials. This is done by making crucial use of group theory and the knowledge of separable coordinate systems on the n-sphere. The expansion presented includes as a special case hypergeometric function expansions of single Heun polynomials that have been derived previously by other methods.

text: Hypergeometric expansions of Heun polynomials The product of two Heun polynomials is expanded in terms of products of two Jacobi polynomials. This is done by making crucial use of group theory and the knowledge of separable coordinate systems on the n-sphere. The expansion presented includes as a special case hypergeometric function expansions of single Heun polynomials that have been derived previously by other methods.

year: 1991

title: An evaluation of the cultural supervision prototype undertaken within the Department of Corrections, Hamilton

authors: Masters-Awatere, Bridgette

subjects: Maori

abstract: Disproportionately high rates of offending and recidivism among Māori are well documented. As part of its attempt to better meet the needs of Māori offenders, the Department of Corrections is developing cultural supervision for staff in the Community Probation Service, the Public Prisons Service and the Psychological Service. The aims of cultural supervision include improving staff members’ knowledge of Māori cultural values, providing support for staff in managing complex cultural issues, and ensuring safe practice and culturally appropriate behaviour. During 2002, the Māori and Psychology Research Unit was contracted to conduct a survey of current practices in relation to cultural supervision and a process evaluation of a prototype of cultural supervision being trialled in the Waikato among probation officers (Hamilton Area) and sentence planners (Waikeria Prison) (Karapu, Masters, Robertson, Trynes, & Waitoki, 2002). Findings from the survey indicated that most staff had informal cultural support or advice available to them. Usually, this was in the form of Māori colleagues within the Department. Less commonly, support was sought from Māori in other organisations, from knowledgeable non-Māori within the Department, kaumātua and kuia, and whānau members. About a third of Corrections staff were receiving some formal cultural supervision, most of whom regarded it positively. Among other staff, both Māori and non-Māori, there was a high level of interest in cultural supervision, and a view that it would be beneficial to their professional practice. Overall, staff felt that the support and advice currently available to them was inadequate. Findings from the evaluation of the prototype suggested that while many of the participants viewed cultural supervision as important for their job, fewer considered that the supervision they were receiving was meeting their needs. Some experienced non-Māori staff seemed to be resistant to the idea of cultural supervision, feeling that they already knew how to relate to Māori offenders. Māori staff were generally enthusiastic about cultural supervision but wanted it to focus on their personal safety as Māori within a “mainstream” institution rather than on their practice. However, both Māori and non-Māori staff generally felt that the cultural supervision sessions provided a safe environment. The prototype appeared to be a good beginning and the model should be stronger when modified in the light of experience.

text: An evaluation of the cultural supervision prototype undertaken within the Department of Corrections, Hamilton Disproportionately high rates of offending and recidivism among Māori are well documented. As part of its attempt to better meet the needs of Māori offenders, the Department of Corrections is developing cultural supervision for staff in the Community Probation Service, the Public Prisons Service and the Psychological Service. The aims of cultural supervision include improving staff members’ knowledge of Māori cultural values, providing support for staff in managing complex cultural issues, and ensuring safe practice and culturally appropriate behaviour. During 2002, the Māori and Psychology Research Unit was contracted to conduct a survey of current practices in relation to cultural supervision and a process evaluation of a prototype of cultural supervision being trialled in the Waikato among probation officers (Hamilton Area) and sentence planners (Waikeria Prison) (Karapu, Masters, Robertson, Trynes, & Waitoki, 2002). Findings from the survey indicated that most staff had informal cultural support or advice available to them. Usually, this was in the form of Māori colleagues within the Department. Less commonly, support was sought from Māori in other organisations, from knowledgeable non-Māori within the Department, kaumātua and kuia, and whānau members. About a third of Corrections staff were receiving some formal cultural supervision, most of whom regarded it positively. Among other staff, both Māori and non-Māori, there was a high level of interest in cultural supervision, and a view that it would be beneficial to their professional practice. Overall, staff felt that the support and advice currently available to them was inadequate. Findings from the evaluation of the prototype suggested that while many of the participants viewed cultural supervision as important for their job, fewer considered that the supervision they were receiving was meeting their needs. Some experienced non-Māori staff seemed to be resistant to the idea of cultural supervision, feeling that they already knew how to relate to Māori offenders. Māori staff were generally enthusiastic about cultural supervision but wanted it to focus on their personal safety as Māori within a “mainstream” institution rather than on their practice. However, both Māori and non-Māori staff generally felt that the cultural supervision sessions provided a safe environment. The prototype appeared to be a good beginning and the model should be stronger when modified in the light of experience.

year: 2003