Minimum-Variance Hedging of Bitcoin Inverse Futures
In: Accepted in Applied Economics
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In: Accepted in Applied Economics
SSRN
Working paper
SSRN
Working paper
In: Computers and Electronics in Agriculture, Band 192, S. 106616
In: Computers and Electronics in Agriculture, Band 177, S. 105692
In: Computers and Electronics in Agriculture, Band 169, S. 105180
In: Computers and Electronics in Agriculture, Band 168, S. 105144
In: Computers and electronics in agriculture: COMPAG online ; an international journal, Band 223, S. 109111
ISSN: 1872-7107
In: Computers and electronics in agriculture: COMPAG online ; an international journal, Band 201, S. 107334
In: Computers and Electronics in Agriculture, Band 179, S. 105833
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 139, S. 83-88
ISSN: 1090-2414
In: Alcohol and alcoholism: the international journal of the Medical Council on Alcoholism (MCA) and the journal of the European Society for Biomedical Research on Alcoholism (ESBRA), Band 58, Heft 1, S. 13-22
ISSN: 1464-3502
Abstract
Aims
Behavior couples therapy (BCT) is widely considered to be effective in the treatment of substance use disorders. However, the effect size of BCT in different outcome measures, and at different time points requires further study to prove it.
Methods
Systematic searches were performed in various databases. Ultimately, we identified 12 studies, involving 19 randomized controlled trials. We used Hedges' g as the effect size, and all pooled analyses were performed using random-effects models.
Results
After treatment, BCT was superior to control conditions (either an active or inactive control group) in frequency of substance use (g = 0.17), substance use consequences (g = −0.28) and relationship satisfaction (g = 0.45). After a 12-month follow-up, BCT remained superior to control conditions in frequency of substance use (g = 0.32), substance use consequences (g = −0.34) and relationship satisfaction (g = 0.31). In addition, BCT was more effective in reducing the frequency of substance use than individual-based treatment (IBT) (g = 0.23). There was no significant relationship between the effect size of BCT and publication year (t = 0.92, P = 0.372), percentage of females (t = −0.02, P = 0.987) or the number of treatment sessions (t = −0.52, P = 0.609).
Conclusions
BCT was superior to the control conditions in all three outcome measures after treatment and at follow-up, and showed a relatively large effect size for relationship satisfaction. Moreover, BCT was superior to IBT in reducing the frequency of substance use.