📚 Understanding Poverty: Causes, Measurement and Solutions | 理解贫困：成因、衡量与对策
Poverty is one of the most significant economic and social challenges facing the world today. For IGCSE Economics students, understanding the causes of poverty, how it is measured, and the policies designed to reduce it is essential for analysing government intervention and development issues.
贫困是当今世界面临的最重大的经济和社会挑战之一。对于 IGCSE 经济学的学生而言，理解贫困的成因、衡量方法以及旨在减少贫困的政策，是分析政府干预和发展问题的关键。
1. What is Poverty? | 什么是贫困？
Poverty can be defined as a state in which an individual or household lacks the financial resources required to meet basic needs such as food, clean water, shelter, healthcare and education. The concept of ‘need’ is not fixed—it changes across societies and over time.
贫困可以被定义为个人或家庭缺乏满足食物、清洁饮用水、住房、医疗和教育等基本需求所需的财力资源的状态。”需求”的概念并非固定不变——它会随着社会和时间的不同而变化。
Economists distinguish between two main types of poverty: absolute poverty and relative poverty. Both are important, but they are measured and interpreted in different ways.
经济学家区分了两种主要的贫困类型：绝对贫困和相对贫困。两者都很重要，但它们的衡量和解读方式有所不同。
2. Absolute vs Relative Poverty | 绝对贫困与相对贫困
Absolute poverty refers to a condition where income is insufficient to meet basic life necessities, such as food, safe drinking water, shelter and clothing. The World Bank defines the international absolute poverty line at US$ 2.15 per person per day (2022 purchasing power parity). People living below this line are considered to be in extreme poverty.
绝对贫困指的是收入不足以满足基本生活必需品的状况，如食物、安全饮用水、住房和衣物。世界银行将国际绝对贫困线定义为每人每天 2.15 美元（按 2022 年购买力平价计算）。生活在这条线以下的人被视为处于极端贫困之中。
Relative poverty, in contrast, is defined in relation to the income distribution of a particular society. A person is said to be in relative poverty if their income is below a certain proportion of the median income—for example, below 60% of the median. Relative poverty reflects inequality within a country, not just the inability to meet absolute needs.
相对贫困则是相对于特定社会收入分配来定义的。如果一个人的收入低于中位收入的某个比例——例如低于中位数的 60%——就被认为处于相对贫困。相对贫困反映的是一国内部的不平等，而不仅仅是无法满足绝对需求的能力。
For example, a person earning £100 a week in the United Kingdom may be above the absolute poverty threshold but below the relative poverty threshold due to the high median income. In contrast, a person earning the same amount in a low-income country may be above the absolute poverty line and considered relatively well-off compared to their fellow citizens.
例如，在英国每周收入 100 英镑的人可能超过绝对贫困线，但由于中位收入较高而低于相对贫困线。相比之下，在低收入国家每周收入相同金额的人可能超过绝对贫困线，并且相对于其同胞而言被视为较为富裕。
3. Causes of Poverty | 贫困的成因
Understanding the causes of poverty is essential before designing policies to tackle it. The causes are often interconnected and vary from person to person and country to country.
在设计消除贫困的政策之前，理解贫困的成因至关重要。这些成因往往是相互关联的，并且因人、因国而异。
Unemployment and underemployment: A lack of employment opportunities or low-quality, low-paid work leaves individuals and families without sufficient income to sustain a decent standard of living.
失业与就业不足：缺乏就业机会或质量低下、报酬微薄的工作使个人和家庭无法获得足够收入来维持体面的生活水平。
Poor education and low skills: Without education and marketable skills, workers are confined to low-paying jobs in the primary or informal sectors, limiting their earning potential.
教育水平低下与技能不足：没有教育和适销的技能，劳动者只能局限于初级部门或非正规部门的低收入工作，从而限制了他们的收入潜力。
Ill health and disability: Illness can reduce a person’s capacity to work, increase medical expenses, and trap households in a cycle of debt and poverty.
健康不良与残障：疾病会削弱个人的工作能力，增加医疗开支，并使家庭陷入债务与贫困的恶性循环。
Economic shocks and instability: Recessions, inflation, natural disasters and crop failures can push vulnerable households below the poverty line, especially in developing countries with weak safety nets.
经济冲击与不稳定：经济衰退、通货膨胀、自然灾害和农作物歉收会将脆弱家庭推至贫困线以下，尤其是在社会保障网络薄弱的的发展中国家。
Discrimination and social exclusion: Gender, caste, ethnicity and other forms of discrimination limit access to jobs, credit, land and public services, perpetuating poverty among certain groups.
歧视与社会排斥：性别、种姓、族裔及其他形式的歧视限制了获得就业、信贷、土地和公共服务的机会，使某些群体的贫困得以延续。
Geographical factors and lack of infrastructure: Remote regions with poor transport, unreliable electricity and weak healthcare systems are at a severe disadvantage, preventing communities from participating in economic activity.
地理因素与基础设施缺乏：交通不便、电力不稳定和医疗系统薄弱的偏远地区处于严重劣势，阻碍了社区参与经济活动。
4. Measuring Poverty | 贫困的衡量
Measuring poverty is necessary to assess the scale of the problem, target policies, and evaluate their effectiveness. Several related measures are used by economists and international organisations.
衡量贫困是评估问题规模、确定政策目标和评价政策效果的前提。经济学家和国际组织使用多种相关的衡量指标。
The headcount ratio measures the proportion of the population living below the poverty line. For example, if 20% of a country’s population lives on less than US$ 2.15 per day, the headcount ratio is 20%. This measure is simple and easy to communicate but does not show how far below the poverty line the poor are.
贫困人口比率（Headcount Ratio）衡量的是生活在贫困线以下的人口比例。例如，如果一个国家 20% 的人口每日收入低于 2.15 美元，则贫困人口比率为 20%。该指标简单直观，但它并未显示贫困人口低于贫困线的程度有多深。
The poverty gap is the total shortfall of income below the poverty line, expressed as a percentage of the poverty line. It captures how severe poverty is—a larger poverty gap means the poor are falling further below the threshold.
贫困差距（Poverty Gap）是贫困线以下收入的总体缺口，以贫困线的百分比表示。它反映的是贫困的严重程度——贫困差距越大，说明贫困人口离贫困线越远。
The Gini coefficient is a broader measure of income inequality on a scale from 0 (perfect equality) to 1 (perfect inequality). A high Gini coefficient suggests that income is concentrated in the hands of a few, often accompanied by relatively high levels of relative poverty.
基尼系数（Gini Coefficient）是衡量收入不平等程度的更广泛指标，取值从 0（完全平等）到 1（完全不平等）。基尼系数高表明收入集中在少数人手中，通常伴随着相对贫困水平较高。
| Measure | What it shows | Limitation |
| Headcount Ratio | Proportion of people below the poverty line | Ignores depth of poverty |
| Poverty Gap | Severity of income shortfall | Harder to communicate |
| Gini Coefficient | Income inequality across the whole population | Does not identify who is poor |
Each measure provides a different lens on poverty. In IGCSE exam questions, you may be asked to explain these measures and evaluate their suitability for different purposes.
每一项指标都提供了观察贫困的不同视角。在 IGCSE 考试中，你可能会被要求解释这些指标并评估其在不同目的下的适用性。
5. Consequences of Poverty | 贫困的后果
Poverty has profound economic, social and political consequences, not only for individuals but for the wider economy and society as a whole.
贫困对个人以及整个经济和社会都会产生深远的经济、社会和政治后果。
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