Adoption of the simplest explanation for an observation. Also stinginess or frugality in regards to economics and finance.
Vanguard must spend a lot of money on printing and mailing its statements, because of the extra paper involved. Undoubtedly, that was a tough decision for the company, which is known for its parsimony
The term for a person (regardless of gender) who has risen to high rank in an organization or group, or who founded said organization or group.
The gender neutral equivalent of the terms Patriarch and Matriarch.
He/She/They were the organization's reigning parriarch(s).