by Why we need pluralist economics [embedded content] The only economic analysis that mainstream economists accept is the one that takes place within the analytic-formalistic modeling strategy that makes up the core of mainstream economics. All models and theories that do not live up to the precepts of the mainstream methodological canon are pruned. You’re free to take your models — not using (mathematical) models at all is considered totally unthinkable — and apply them to whatever you want — as long as you do it within the mainstream approach and its modeling strategy. If you do not follow that particular mathematical-deductive analytical formalism you’re not even considered doing economics. ‘If it isn’t modeled, it isn’t economics.’ That isn’t
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Lars Pålsson Syll considers the following as important: Economics
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Why we need pluralist economics
The only economic analysis that mainstream economists accept is the one that takes place within the analytic-formalistic modeling strategy that makes up the core of mainstream economics. All models and theories that do not live up to the precepts of the mainstream methodological canon are pruned. 
You’re free to take your models — not using (mathematical) models at all is considered totally unthinkable — and apply them to whatever you want — as long as you do it within the mainstream approach and its modeling strategy.
If you do not follow that particular mathematical-deductive analytical formalism you’re not even considered doing economics. ‘If it isn’t modeled, it isn’t economics.’
That isn’t pluralism.
That’s a methodological reductionist straightjacket.