| Production Possibility Curve (PPC) | no attested term | 生产可能性曲线 (shēngchǎn kěnéngxìng qūxiàn) | 생산가능곡선 (saengsan ganeung gokseon) | The boundary showing the maximum combinations of two goods an economy can produce with its existing resources and technology, assuming full and efficient use. |
| Opportunity Cost | no attested term | 机会成本 (jīhuì chéngběn) | 기회비용 (gihoe biyong) | The value of the next best alternative given up when resources are reallocated from producing one good to producing another — shown as a movement along the curve. |
| Productive Efficiency | no attested term | 生产效率 (shēngchǎn xiàolǜ) | 생산적 효율성 (saengsanjeok hyoyulseong) | Achieved at any point ON the PPC: no more of one good can be produced without producing less of the other. |
| Underutilisation of Resources | no attested term | 资源未充分利用 (zīyuán wèi chōngfèn lìyòng) | 자원의 저활용 (jawon-ui jeohwal-yong) | A point INSIDE the PPC, where resources are unemployed, underemployed or poorly allocated, so output of both goods could rise without any extra resources. |
| Unattainable Combination | no attested term | 不可达到的组合 (bùkě dádào de zǔhé) | 달성 불가능한 조합 (dalseong bulganeunghan johap) | A point OUTSIDE the current PPC — not achievable with the economy's present resources and technology. |
| Economic Growth | tipu ohaoha | 经济增长 (jīngjì zēngzhǎng) | 경제 성장 (gyeongje seongjang) | An outward shift of the whole PPC caused by more resources or better technology, raising the potential output of both goods. |
| Economic Development | whanaketanga ohaoha | 经济发展 (jīngjì fāzhǎn) | 경제 발전 (gyeongje baljeon) | A broader improvement in living standards and wellbeing. On a PPC it is often shown as an uneven outward shift, favouring the goods and services that raise quality of life rather than growth in every good equally. |
| Increasing Opportunity Cost | no attested term | 机会成本递增 (jīhuì chéngběn dìzēng) | 기회비용 체증 (gihoe biyong chejeung) | The reason the PPC bows outward: resources are not perfectly suited to producing both goods, so each extra unit of one good costs progressively more of the other. |