replacement rate

简明释义

更新率

英英释义

例句

1.To maintain productivity, the replacement rate 更替率 of machinery must be closely monitored.

为了保持生产力，机械的replacement rate 更替率必须得到密切监控。

2.The company's replacement rate 更替率 for employees has increased due to high turnover.

由于员工流失率高，该公司的replacement rate 更替率有所增加。

3.Our research shows that a high replacement rate 更替率 can lead to better team dynamics.

我们的研究表明，高replacement rate 更替率可以促进团队动态的改善。

4.The government is concerned about the low replacement rate 更替率 of the population.

政府对人口的低replacement rate 更替率表示担忧。

5.To ensure sustainability, the forest's replacement rate 更替率 must match its growth rate.

为了确保可持续性，森林的replacement rate 更替率必须与其生长率相匹配。

作文

The concept of replacement rate is crucial in understanding demographic trends and their implications for society. In simple terms, the replacement rate refers to the level of fertility at which a population exactly replaces itself from one generation to the next, without migration. This rate is typically quantified at around 2.1 children per woman in developed countries, taking into account that not all children will survive to adulthood and reproduce. Understanding this concept is vital for policymakers and economists as it affects labor markets, social security systems, and economic growth.In many developed nations, the replacement rate has fallen below this critical threshold due to various factors, including increased access to education, career opportunities for women, and changing societal values regarding family and child-rearing. As a result, countries like Japan, Italy, and Germany are facing significant demographic challenges. The declining birth rates lead to an aging population, which in turn increases the dependency ratio—the number of dependents, old and young, that each working-age person must support. This situation can strain public resources and social services, making it imperative for governments to address these issues proactively.Conversely, some developing countries exhibit a replacement rate that significantly exceeds the 2.1 threshold. High fertility rates can lead to a youthful population, which presents both opportunities and challenges. While a large workforce can drive economic growth, it also requires substantial investment in education, health care, and job creation. Failure to provide these essential services can lead to high unemployment rates and social unrest.To mitigate the issues related to low or high replacement rate, countries have adopted various strategies. For instance, some governments offer financial incentives for families to have more children, such as tax breaks or direct payments. Others focus on immigration policies to boost population numbers and fill labor shortages. Countries like Canada and Australia have successfully implemented immigration programs that attract skilled workers to support their economies and offset declining birth rates.Moreover, addressing gender equality and providing better work-life balance can also influence the replacement rate. By creating environments where women can pursue careers while raising families, nations may encourage higher birth rates. Policies such as paid parental leave, affordable childcare, and flexible work arrangements can help achieve this balance.In conclusion, the replacement rate is a fundamental demographic measure that has far-reaching implications for societies worldwide. As nations navigate the complexities of changing birth rates, it is essential to understand the underlying factors that contribute to these trends. By implementing thoughtful policies that address the challenges of both low and high replacement rates, countries can work towards sustainable demographic and economic futures. The interplay between population dynamics and economic stability is intricate, but with careful planning and foresight, societies can adapt to the evolving landscape of human demographics.

“更替率”这一概念在理解人口趋势及其对社会影响方面至关重要。简单来说，replacement rate（更替率）指的是一个人口在没有迁移的情况下，恰好从一代人替换到下一代人的生育水平。这个比率通常在发达国家约为每位女性2.1个孩子，因为并非所有孩子都会活到成年并繁殖。理解这一概念对于政策制定者和经济学家至关重要，因为它影响劳动市场、社会保障体系和经济增长。在许多发达国家，由于教育机会的增加、女性职业机会的提升以及家庭和育儿价值观的变化，replacement rate（更替率）已降至这一关键阈值以下。因此，日本、意大利和德国等国面临着严重的人口挑战。出生率下降导致老龄化人口增加，这反过来又提高了抚养比——每个工作年龄人口必须支持的依赖人数，包括老年人和年轻人。这种情况可能会给公共资源和社会服务带来压力，因此政府必须积极应对这些问题。相反，一些发展中国家的replacement rate（更替率）显著高于2.1的阈值。高生育率可能导致青年人口，这既带来机遇也带来挑战。虽然庞大的劳动力可以推动经济增长，但这也需要在教育、医疗和就业创造方面进行大量投资。如果未能提供这些基本服务，可能会导致高失业率和社会动荡。为了缓解与低或高replacement rate（更替率）相关的问题，各国采取了各种策略。例如，一些政府为家庭提供经济激励，以鼓励更多生育，例如减税或直接支付。其他国家则专注于移民政策，以提升人口数量并填补劳动力短缺。像加拿大和澳大利亚这样的国家成功实施了吸引技术工人的移民项目，以支持他们的经济并抵消出生率下降的问题。此外，解决性别平等和提供更好的工作与生活平衡也可以影响replacement rate（更替率）。通过创造女性能够在养家糊口的同时追求职业发展的环境，各国可能会鼓励更高的出生率。诸如带薪产假、负担得起的儿童保育和灵活的工作安排等政策可以帮助实现这种平衡。总之，replacement rate（更替率）是一个基本的人口测量标准，对全球社会有深远的影响。随着各国应对出生率变化的复杂性，理解促成这些趋势的潜在因素至关重要。通过实施周密的政策来应对低和高replacement rate（更替率）所带来的挑战，各国可以朝着可持续的人口和经济未来努力。人口动态与经济稳定之间的相互作用错综复杂，但通过谨慎的规划和前瞻性思维，社会可以适应人类人口结构不断演变的格局。