my personal opinion is that one single world-wide society would be a horrific idea. i find mass society (what you describe would be the ultimate embodiment of that) to be antithetical to (at least my own) anarchist ideas. that is because mass society requires homogenization, standardization, and forced (often false) unity; it is inseparable from the institutions of domination and control that have always accompanied it.
it is my thought that the only way humans will ever be able to experience the kind of freedom that i personally desire, is if they choose to exist in much smaller, completely voluntary, fluid and dynamic, autonomous groupings based on affinities of desire (not such abstractions as the geopolitical borders drawn around where one was born, what color one's skin is, or who one likes to have sex with). those groups would interact with other groups exactly if and when they all choose to.
as for "goods" moving anywhere, that is a function of economic systems. i would rather see such institutions gone from all human relations. without mass society, the need for such systems - and the related exploitation and accumulation of wealth and resources - would basically cease to exist. sure, some individuals (or small groups) may still try to prevent others from accessing the resources needed for survival; but without institutional authorities to protect them, they would almost certainly be challenged and ultimately prevented from doing so.