Wow, this credit thing is a really great idea!!! I am now less sceptical about the sandbox concept of Vic2. I like the idea that stuff like the Mexican debt crisis should be possible through the game engine.
I have three questions about landlocked countries, and borrowing countries in general:
1) Is there a "priority order" among countries desiring credit? I.e., does a coastal country have an easier time getting credit than a landlocked one?
Historically, landlocked countries tended to be poorer than the ones with coast, because international commerce tended to overlook them in many ways.
2) What is the incentive for small, landlocked countries to acquire a coast line?
Unless you are planning on becoming a creditor country, getting a coast line is actually dangerous now, isn't it? Because if you default on your loans, the UK or France can only get at you if you have a coast line or a common border. I.e. if Bolivia loses access to the coast to Chile, Bolivia is suddenly free to default on its foreign debt without having to fear gunboats and invasion. Or did I overlook something? Does the Great Powers' AI know how to negotiate military access with Peru or Chile if Bolivia goes bankrupt?
3) What can a creditor country enforce from a defaulting country? Other than territorial annexations, that is? Can you choose a war goal like "Force debt repayment, and install a puppet government that will levy >50% taxes and keep the military / administration / education sliders at <50% for the next five years" ?
That would give me (the creditor) what I want if the provinces of the defaulting country are all useless jungle or I don't want to annex their land for some other reason. (Monroe doctrine f.ex.) The country might still only be able to play a small trickle of money, but it would no longer be able to intentionally not repay my debt. In multiplayer games this would be a valuable option - the defaulting country that suffers invasion from the British or French would get limits on its sliders (which may override those that would otherwise be imposed by political categories) and could only get rid of them by declaring war on the creditor again or choosing some other, defined action of defiance.
Arsenal of Democracy has this feature where your ability to switch ministers may be "locked" by event or if you swap the ministers once. The slider limits could be designed in a similar way... if your country is under the effect of a "Forced Debt Repayment Peace Treaty", then you would have those limits on your sliders and a little clock symbol would show you that the limits are going to cease at some given time point. The tooltip would then say something like "Under the terms of our Debt Repayment Treaty with United Kingdom, we can only raise education spending above 50% again after January 4th, 1859." Alternatively if the country suffers a revolution (i.e. overthrow of the puppet government) then the sliders limits would also be removed again, but the UK or France would get yet another casus belli (i.e. a war goal) and could choose to go to war with you yet again.