Applies marginal thinking: the relevant decision is the next unit, not the average or the sunk cost. Triggers: 'should we do more of this', 'should we expand', 'should we cut', 'marginal cost', 'sunk cost', 'we've already invested so much', 'average cost', 'is this worth continuing', 'how much should we produce', 'at what point should we stop', any decision about quantity, scale, or whether to…
安装
npx skills add human-avatar/skills-for-humanity --skill s4h-economics-marginnpx skills add human-avatar/skills-for-humanity --skill s4h-economics-margin -a claude-code -gnpx skills add human-avatar/skills-for-humanity --skill s4h-economics-margin -a codex -ggemini skills install https://github.com/human-avatar/skills-for-humanity.git --path skills/s4h-economics-margingh skill install human-avatar/skills-for-humanity s4h-economics-margingit clone --depth 1 https://github.com/human-avatar/skills-for-humanity /tmp/human-avatar__skills-for-humanity
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/human-avatar__skills-for-humanity/skills/s4h-economics-margin ~/.claude/skills/s4h-economics-margin # Claude Code
cp -R /tmp/human-avatar__skills-for-humanity/skills/s4h-economics-margin ~/.agents/skills/s4h-economics-margin # Codex, Cursor, Gemini CLI, Copilot, OpenCode