Differences in Economic Development between Countries | 国家间经济发展的差异

📚 Differences in Economic Development between Countries | 国家间经济发展的差异

Economic development is a broad concept that describes the overall improvement in the quality of life, income levels, health, education, and well-being of a country’s population. It is not the same as economic growth, which simply measures the increase in a country’s output over time. This article examines the key differences in economic development between countries, the indicators used to measure them, and the main causes behind these gaps.

经济发展是一个广泛的概念，描述的是一个国家人口在生活质量、收入水平、健康、教育和福祉方面的整体改善。它不同于经济增长——经济增长仅衡量一个国家产出随时间的增加。本文探讨国家间经济发展的主要差异、用于衡量这些差异的指标，以及这些差距背后的主要原因。

1. Defining Economic Development | 定义经济发展

Economic development refers to an improvement in the standard of living of a population, including higher incomes, better healthcare, increased educational attainment, and greater personal freedoms. Development also involves a reduction in poverty and inequality within a society.

经济发展指的是人口生活水平的提高，包括更高的收入、更好的医疗保健、更高的教育水平和更大的个人自由。发展还涉及减少社会内部的贫困和不平等。

By contrast, economic growth is measured by the increase in real GDP or real GDP per capita over time. A country can experience growth without significant development if the extra income is concentrated in the hands of a few and does not translate into better health or education outcomes.

相比之下，经济增长是通过实际GDP或人均实际GDP随时间的增加来衡量的。如果一个国家的额外收入集中在少数人手中，且并未转化为更好的健康或教育成果，那么这个国家可能会出现增长但没有显著的发展。

2. GDP per Capita as a Measure | 人均GDP作为衡量标准

Real GDP per capita is the most commonly used indicator for comparing economic development between countries. It is calculated by dividing the total real GDP of a country by its population. For example, if country A has a real GDP of $200 billion and a population of 50 million, its real GDP per capita is $4,000.

实际人均GDP是比较各国经济发展最常用的指标。其计算方法是将一个国家实际GDP总量除以其人口。例如，如果A国的实际GDP为2000亿美元，人口为5000万，那么其人均实际GDP为4000美元。

Real GDP per capita = Real GDP ÷ Population

人均实际GDP = 实际GDP ÷ 人口

However, GDP per capita has limitations. It does not show the distribution of income, ignores non-market transactions, does not account for the underground economy, and says little about health, education, or environmental quality. For these reasons, economists use additional indicators alongside GDP per capita when comparing development.

然而，人均GDP有局限性。它不能显示收入分配状况，忽略了非市场交易，不涵盖地下经济，并且对健康、教育或环境质量反映甚少。因此，经济学家在比较发展水平时，会结合其他指标来使用人均GDP。

3. The Human Development Index (HDI) | 人类发展指数

The Human Development Index (HDI), published by the United Nations, is a composite indicator that measures development using three dimensions: health (life expectancy at birth), education (mean years of schooling and expected years of schooling), and standard of living (GNI per capita). The HDI ranges from 0 to 1.

由联合国发布的人类发展指数（HDI）是一个综合指标，从三个维度衡量发展：健康（出生时预期寿命）、教育（平均受教育年限和预期受教育年限）和生活水平（人均国民总收入）。HDI的取值范围为0到1。

• Health is measured by life expectancy at birth. A longer lifespan suggests better healthcare and nutrition in a country.

  健康通过出生时预期寿命来衡量。寿命更长意味着一个国家拥有更好的医疗保健和营养。

• Education is measured by expected years of schooling for children of school age and the average years of schooling completed by adults.

  教育通过学龄儿童的预期受教育年限和成年人平均完成受教育年限来衡量。

• Living standards are measured using GNI per capita, converted to US dollars using purchasing power parity (PPP).

  生活水平以人均GNI来衡量，并使用购买力平价（PPP）折算为美元。

Countries with an HDI of 0.800 or above are classified as having ‘very high human development’, while countries below 0.550 are considered ‘low human development’. For example, Norway frequently ranks at the top of the HDI, while several sub-Saharan African countries rank near the bottom.

HDI达到0.800或以上的国家被归类为“极高人类发展水平”，而低于0.550的国家被视为“低人类发展水平”。例如，挪威经常在HDI排名中名列前茅，而一些撒哈拉以南非洲国家则排在接近末尾的位置。

4. Other Indicators of Development | 其他发展指标

Besides GDP per capita and the HDI, economists examine several other indicators when comparing development levels across countries.

除了人均GDP和HDI之外，经济学家在比较各国发展水平时还会考察若干其他指标。