I think you'll see a big difference depending upon details, esp POP, of each system.

I think the Hi-POP worlds of the 'Marches, for example, could pretty much last forever on their own.
The 'BIG-4' (Mora, Trin, Rhylanor, Glisten), all Hi-POP & TL15 are a sure bet but I think that even Porazlo, TL10 & POP9, would get along just fine.
Now, of course, the various higher-level govs (sub-sector, sector, etc) would definitely have an interest in maintaining trade, just as the Spanish did wrt their NewWorld colonies despite the omnipresent threat of piracy.

p.s. I've always wondered if the Spanish lost more to hurricanes & other inclement weather than they did to piracy, or privateers.

---------------------------------------------------------------------------------------------------------------
On Mon, 7/24/17, Bruce Johnson <xxxxxx@Pharmacy.Arizona.EDU> wrote:

 Subject: Re: [TML] Changing The Jump Drive Limit?
 To: "xxxxxx@simplelists.com" <xxxxxx@simplelists.com>
 Date: Monday, July 24, 2017, 9:59 AM

 On Jul 24,
 2017, at 1:30 AM, Amber Witherspoon <xxxxxx@gmail.com>
 wrote:

 So, what I'm getting is that if we want to provide a
 golden

 opportunity for piracy, the numbers will have to be tweaked
 to provide

 a large enough region of space for lurking, but not so large
 that it

 becomes uneconomical to fly to the main world? Say, 2.5x
 (250

 diameters)?

 if this is the only way to do
 interstellar trade, ‘uneconomical’ won’t really
 matter; worlds cut off from trade will pretty quickly
 dwindle; look at once thriving towns that were bypassed by
 the interstates…they won’t even be able to support
 pirates.
  You’ll have the occasional world that serves as a hidey
 hole for bad guys, loners and just plain freaks, but any
 world that wants to maintain contact with the outer universe
 will pay the price to keep a starport up.

 What you end up with, I think is
 Traveller between systems and (depending on your TU and
 tastes) in-system settings are like The Expanse, Firefly or
 some other local setting altogether.

 You may have sprawling in-system
 development and traffic or you could just have the starport
 with essentially giant cargo “trains” of traffic going
 to and from the main world. 

 Obviously the ‘sprawling’
 model offers a lot more PC
 piratical adventuring potential. :-)

 -- 

 Bruce Johnson

 University of Arizona

 College of Pharmacy

 Information Technology Group

 Institutions do not have opinions, merely customs

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