[scythe]

It’s generally my understanding that unions tend to decrease labor mobility, and are most effective for improving working conditions when labor mobility is naturally very low, as in industries dominated by a few players (shipping, auto) or where company-specific knowledge becomes very important (retail, maybe construction?). Industries with a high proportion of freelancers tend to form guilds, which are slightly different and often focus on licensure (barbers, doctors, lawyers). But programmers — like managers, accountants and bankers — have highly transferable skills that give them lots of employment options. Additionally, programming creates its own communication skills by (literal) networking, which aids programmers searching for jobs (they can send code samples over a wire). As such, competition for labor is more effective in tech than in many other fields.