The paper presents a unified semi-empirical model for the coupling between accretion and jet production in galactic black hole X-ray binaries. The authors, Rob Fender, Tomaso Belloni, and Elena Gallo, summarize the key observational findings and theoretical considerations that support their model. They highlight the importance of understanding the relationship between radio emission and X-ray states, particularly during transient outbursts. The model suggests that in the low-luminosity state (LS), a steady jet is produced, while in the high-luminosity state (HS), no jet is observed. During the transition from the hard to the soft Very High State (VHS/IS), the jet velocity increases significantly, leading to internal shocks and optically thin radio emissions. The authors also discuss the implications of their model for understanding the jet dynamics in black hole binaries and its potential applications to Active Galactic Nuclei (AGN). They acknowledge the need for further detailed modeling and observational studies to refine their model and explore its broader implications.The paper presents a unified semi-empirical model for the coupling between accretion and jet production in galactic black hole X-ray binaries. The authors, Rob Fender, Tomaso Belloni, and Elena Gallo, summarize the key observational findings and theoretical considerations that support their model. They highlight the importance of understanding the relationship between radio emission and X-ray states, particularly during transient outbursts. The model suggests that in the low-luminosity state (LS), a steady jet is produced, while in the high-luminosity state (HS), no jet is observed. During the transition from the hard to the soft Very High State (VHS/IS), the jet velocity increases significantly, leading to internal shocks and optically thin radio emissions. The authors also discuss the implications of their model for understanding the jet dynamics in black hole binaries and its potential applications to Active Galactic Nuclei (AGN). They acknowledge the need for further detailed modeling and observational studies to refine their model and explore its broader implications.