add elements that occur in economics
add elements that occur in economics

Connexions/cnx-recipes,Connexions/cnx-recipes,Connexions/cnx-recipes,Connexions/cnx-recipes,Connexions/cnx-recipes,Connexions/cte,Connexions/cte,Connexions/cnx-rulesets,Connexions/cnx-rulesets,Connexions/cnx-rulesets,Connexions/cnx-rulesets