Bitcoin Forum

Let's face it. Humans reproduce, economies grow, and currencies need to inflate in order to keep up.

Is there a crypto coin which has some idea of inflation built into it?

I have studied economics for years and I see no reason why inflating the currency is necessary.  Do you?

Well, the point it kind of the opposite. How do you control a decentralised inflation?
Cryptocoin is successful for the reason that it is not controlled by a single entity and therefore safer for your funds.
Of course bitcoin is infinitely divisible so instead of making more money, you split it into smaller pieces.
This has of course some negative consequences on the value of the coin since it will continue to grow after demand.

All world's currencies are inflationary and all economists that I have ever heard say inflation is a necessary thing so I guess there must be a good reason.

One thing I can think of is that deflationary currencies discourage economic activity and encourage hoarding.  That doesn't seem like the best thing for a currency.

That's a really good question. 

 I am no mathematician but one approach might be not to set an upper limit on the number of coins.  Perhaps the difficulty could be dynamically adjusted according to number of transactions per minute and the number of coins in circulation.

Novacoin says the coin limit "can be lifted in the future if nececarry"
I haven't seen any of the other cryptocurrencies saying something similar. They won't be lifted so no inflation.

Sifcoin
En: https://bitcointalk.org/index.php?topic=240894.0
more updated Ru: https://bitcointalk.org/index.php?topic=240884.0 look at page 17-18 for actual files and info

Found another one - http://memorycoin.org/ru/manifesto/
2% inflation

Well for the phase (which can last hundreds of years) cryptocurrency remains inflationary, although the supply is limited and will reach its cap someday. There is a good article about this topic on cryptolife.net: http://cryptolife.net/crytocurrency-is-inflationary-not-deflationary/.