Economy is related to Financial. Financial is related to Expense. Expense is related to High. High is a synonym of Close. 
Thinking can cause/lead to Insight. Insight is related to Cite. 
Economy <--RelatedTo--> Financial <--RelatedTo--> Expense <--RelatedTo--> High <--Synonym--> Close 
Thinking --Causes--> Insight <--RelatedTo--> Cite 