Well yes we anarchists are very vague in “our program” precisely because we don’t want a program. We are against the dogma and we believe the best course of action depends on the actual circumstances (which we cannot foresee) and can only be decided by the wisdom of the crowds of concerned folks, not by enlightened philosophers from their ivory tower.

Now if you want some economics-oriented anarchist works, i’d suggest you read Proudhon. Cast aside the obvious misogyny and antisemitism, he’s the spiritual founder of revolutionary cooperativism. I also thought Crimethinc’s Exercise: what does an anarchist program look like? was really good.

Also, economics is in my view one of the least interesting things to discuss. Because we cannot predict the future, but economics has to make a lot of assumptions. For example, if you’re studying local growing/sharing practices then you don’t need formal economics: we just work the fields and collect food for everyone. But if you’re studying on a wider scale, then you have very serious questions: who gets to decide what should be extracted/produced or not? how to you funnel resources from one place to another without fossil fuels? etc.