PPC , CPA or PPD? What's best?

Hello guys, good night.

I'll starting to study about CPA, PPC and PPD making money process, but i would apreciate if anyone can help me focus in one of those .

What's generates more profits? CPA , PPC or PPD? For what i see, CPA is best... but in your opinion, which one generate more income? How much , in average, CPA pays per action?

Huge Thanks!

You're asking the wrong question. What you should be asking (yourself) is which are you more comfortable with? If you've got a solid plan to drive downloads to products that pay you for them, do it. If you're excellent with ad copy and make great landing pages to pre-sell CPA offers, do that. And if you're interested in learning how to optimize PPC campaigns to drive additional traffic TO your landing pages for CPA offers, by all means..go right ahead.

depends... carepolice is right... I'm very comfortable with CPA so i'm sticking with it, however don't limit yourself.

Go for PPD, then slowly start learning CPA, then go for PPC and combine PPC with CPA.