When it comes to the game economy in Guild Wars 2, there are 2 main currencies in use: the primary being coins which is made up of gold and its different units while guilds make use of influence. Influence is used for buying upgrades and what not for guilds and is a necessity for joining group fights as well as PvP. The gold counterpart is the main currency and thus could also be used to purchase influence.
Influence is not as difficult to obtain as it may seem. It can be earned via in both player versus environment (PvE) fights and player versus player (PvP) events. Gamers can also earn influence by accepting guild invitations as well as if they are online during an attendance check. All sorts of political upgrades which may include guild emblems, buffs, party items or guild armors can be bought by using influence. Other than that, the Art of War upgrades which are more or less buffs for world versus world events are also obtained by way of influence. Other guild upgrades that makes use of influence are economy and architectural upgrades.
As for the main Guild Wars 2 currency, it is made up of three units: bronze, silver and gold, with gold being the largest form. Throughout the game, gamers will find that gold is a necessity in order to smoothly progress to the level cap. There are several ways to earn gold, the most common of which is by killing mobs in PvE settings and looting. Other means of earning gold include completion of game events, selling away items to NPC vendors, filling a heart meter and of course by way of trading goods with other gamers.
As players progress through the storyline, they will find that more and more gold are called for to get higher level weapons, in order to purchase upgrades, repair armors as well as for teleportation. Players with more gold at their disposal will find that the levelling progression to the level cap automatically becomes faster. For obvious reasons, gold is used for teleportation, teleportation in itself avoids lengthy playtime wasted on traveling on foot between destinations. More gold also means the ability to reset trait points more often, never having to have second thoughts about repairing a broken attire, purchasing expensive items from vendors or trading away with other players. All of these, in combination enables the richer gamer to quicken the levelling up time, be it by way of better weapons to reap in experience points from taking down mobs or teleporting between waypoints.