Competition and cooperation and not two things in conflict. They are both essential ingredients in a society based on voluntary action instead of violence.
The experience with which the sciences of human action have to deal is always an experience of complex phenomena. No laboratory experiments can be performed with regard to human action.
There is no evidence that properly trained and armed private citizens would do a worse job than government "law enforcement" personnel in enhancing school safety.
Central banks are absolutely committed to low rates because higher interest rates would turn the boom into bust, and would collapse our production and employment structure now based on a system of ultra-low rates.
Just as unilateral free trade results in a more solid economy for the countries that adopt it — even within an international economy of protectionism in other countries — so would a commodity-money based economy surrounded by fiat-money economies.
Assessing cryptocurrencies through a framework of "saleableness" may help us understand why some cryptocurrencies are chosen for speculation above others.