self-sufficiency principle; do-it-yourself approach
Refers to a policy or mindset of relying on one's own resources rather than outsourcing or depending on others. Often used in business, technology, or organizational contexts.
That company sticks to a self-sufficiency principle and produces everything in-house without outsourcing.
A downside of the self-sufficiency approach is that costs can increase.
自給自足 focuses on producing one's own food and necessities, often for personal or community survival, while 自前主義 is a broader principle of self-reliance in business or organizational strategy.
内製 means in-house production, a concrete action, whereas 自前主義 is the underlying philosophy or policy of doing things oneself.
Compound of 自前 (じまえ, 'one's own resources; self-funded') + 主義 (しゅぎ, 'principle; doctrine').