This depends on the region/university/timescale/etc. Consider this: student at institution A (UK) writes code, postdoc at institution B (USA) modifies it, shar

This depends on the region/university/timescale/etc. Consider this: student at institution A (UK) writes code, postdoc at institution B (USA) modifies it, shared with researcher at institution C (China) who runs it for a paper first-authored by student at institution D (Germany). Who has the rights to share the code and data? Which jurisdiction would this fall under?