I am by no means a history or economics expert, but that doesn't mean I won't spout my opinions as fact on the internet!
IF the gil system works similarly to how some early (and/or fantasy) coin systems worked, the coin is made of a precious metal of some sort that is actually worth the value assigned to it. One gil would be made of materials that are worth... one gil. It's not inflation-proof, but it's pretty stable since you literally can't make more money than you have (like we can with our dinky paper currency). Inflation in that sort of economy would more often come from discovering and mining new sources of gold/silver/whatever and potentially flooding the market. If it isn't rare any more, it isn't worth as much.
Counterfeiters in such a system would have to focus on producing inexpensive look-alike, weigh-alike, bend-alike, taste-alike metals to pass off as the precious metal used in regular coinage. Making your own 'fake' coins out of real gold isn't exactly profitable. Maybe a thin veneer of gold (or whatever material) on top of a more common but comparably dense metal... *plots...* Other more profitable ways to cheat the system include shaving the edges of the coins and recasting them in ever-so-slightly thinner molds.
But again, all of this is predicated on a big IF.
IF the gil system works similarly to how some early (and/or fantasy) coin systems worked, the coin is made of a precious metal of some sort that is actually worth the value assigned to it. One gil would be made of materials that are worth... one gil. It's not inflation-proof, but it's pretty stable since you literally can't make more money than you have (like we can with our dinky paper currency). Inflation in that sort of economy would more often come from discovering and mining new sources of gold/silver/whatever and potentially flooding the market. If it isn't rare any more, it isn't worth as much.
Counterfeiters in such a system would have to focus on producing inexpensive look-alike, weigh-alike, bend-alike, taste-alike metals to pass off as the precious metal used in regular coinage. Making your own 'fake' coins out of real gold isn't exactly profitable. Maybe a thin veneer of gold (or whatever material) on top of a more common but comparably dense metal... *plots...* Other more profitable ways to cheat the system include shaving the edges of the coins and recasting them in ever-so-slightly thinner molds.
But again, all of this is predicated on a big IF.
