HDI consists all EXCEPT:
**Core Concept**
Human Development Index (HDI) is a composite measure that assesses a country's well-being by combining three essential dimensions of human development: life expectancy at birth, expected years of schooling, and gross national income (GNI) per capita.
**Why the Correct Answer is Right**
HDI is a widely used metric to evaluate a nation's progress in health, education, and income. The three components of HDI are life expectancy at birth, expected years of schooling, and GNI per capita. These components are chosen because they are critical indicators of a country's ability to provide its citizens with a good quality of life. Life expectancy at birth reflects the health outcomes of a population, while expected years of schooling and GNI per capita indicate a country's level of education and economic development, respectively.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because HDI does not include a measure of poverty as one of its components. While poverty is an important aspect of a country's well-being, HDI focuses on life expectancy, education, and income.
* **Option B:** This option is incorrect because HDI does not include a measure of political stability as one of its components. While political stability is essential for a country's development, HDI focuses on health, education, and income outcomes.
* **Option C:** This option is incorrect because HDI does not include a measure of environmental sustainability as one of its components. While environmental sustainability is critical for long-term development, HDI focuses on human development outcomes.
**Clinical Pearl / High-Yield Fact**
It's essential to note that while HDI is a widely used metric, it has its limitations. For example, HDI does not account for income inequality, which can be a significant issue in some countries. Additionally, HDI is not a perfect measure of human development, as it relies on data that may not accurately reflect a country's true well-being.
**Correct Answer: A. HDI consists all EXCEPT a measure of poverty.**