中文：

GDP为什么会增长？

GDP是一个国家或地区所有常住单位在一定时期内生产活动的最终成果。长期以来，GDP的增长一直是各国经济发展的重要追求目标之一。那么，GDP为什么会增长呢？

首先，技术的进步是GDP增长的重要原因之一。随着科技的不断发展，生产效率得到了大幅提升，使得单位时间内能够生产出更多的产品和服务。这不仅能够满足人们日益增长的物质需求，还能够创造更多的就业机会和社会财富。

其次，人口红利的增加也是GDP增长的原因之一。当一个国家或地区的劳动力人口数量增加时，生产力的提高也会带动GDP的增长。同时，更多的人口意味着更大的市场需求和更广阔的消费空间，这也有助于促进经济的增长。

此外，投资和出口也是GDP增长的重要推动力。当一个国家或地区有更多的投资和出口时，其生产能力和市场竞争力也会得到提升。这不仅能够带来更多的就业机会和财富，还能够促进产业升级和技术创新，进一步推动经济的持续发展。

最后，政策的引导也是GDP增长的原因之一。各国政府往往通过制定相关政策来引导市场主体行为，促进经济的发展。例如，通过财政政策和货币政策的调节来刺激经济增长、通过产业政策的引导来推动产业结构升级等。

总之，GDP的增长是由多种因素共同作用的结果。技术的进步、人口红利的增加、投资和出口的增加以及政策的引导等都是推动GDP增长的重要因素。只有充分认识和利用这些因素，才能够更好地促进经济的持续发展和社会进步。

英文：

Why does GDP grow?

GDP is the final output of all resident units in a country or region produced during a certain period of time. For a long time, the growth of GDP has been one of the important goals pursued by the development of various countries. So, why does GDP grow?

Firstly, technological progress is an important reason for the growth of GDP. With the continuous development of technology, production efficiency has been greatly improved, enabling the production of more products and services within a unit of time. This not only meets people's growing material needs but also creates more employment opportunities and social wealth.

Secondly, the increase of demographic dividend is also a reason for the growth of GDP. When the number of labor force increases in a country or region, the improvement of productivity will also drive the growth of GDP. At the same time, more population means larger market demand and broader consumer space, which also helps to promote economic growth.

In addition, investment and export are also important driving forces for the growth of GDP. When a country or region has more investment and export, its production capacity and market competitiveness will also be improved. This not only brings more employment opportunities and wealth but also promotes industrial upgrading and technological innovation to further promote the sustainable development of the economy.

Finally, policy guidance is also a reason for the growth of GDP. Governments often formulate relevant policies to guide market entities and promote economic development. For example, stimulating economic growth through fiscal policy and monetary policy regulation, promoting industrial structure upgrading through industrial policy guidance, etc.

In conclusion, the growth of GDP is the result of various factors working together. Technological progress, the increase of demographic dividend, investment and export growth, and policy guidance are all important factors driving the growth of GDP. Only by fully recognizing and utilizing these factors can we better promote the sustainable development of the economy and social progress.