input-output model

简明释义

投入产出模型

英英释义

例句

1.The government commissioned a study using an input-output model to assess infrastructure needs.

政府委托了一项研究，使用投入产出模型来评估基础设施需求。

2.The input-output model helps businesses understand how changes in one sector affect others.

该投入产出模型帮助企业理解一个行业的变化如何影响其他行业。

3.By utilizing the input-output model, we can better allocate resources in our supply chain.

通过利用投入产出模型，我们可以更好地分配供应链中的资源。

4.The economist used the input-output model to analyze the economic impacts of new policies.

经济学家使用投入产出模型来分析新政策的经济影响。

5.In our project, we applied the input-output model to forecast future production levels.

在我们的项目中，我们应用了投入产出模型来预测未来的生产水平。

作文

The input-output model is a fundamental concept in economics and systems theory that helps to understand how different components of an economy interact with one another. Essentially, this model illustrates the flow of inputs into a system and the resulting outputs that are produced. By analyzing these flows, economists and analysts can gain insights into the efficiency and productivity of various sectors within an economy. For instance, when we consider a manufacturing firm, the inputs might include raw materials, labor, and capital, while the outputs would be the finished products that are sold to consumers.One of the key advantages of the input-output model is its ability to quantify the relationships between different industries. This quantification allows for detailed economic analysis, which can be crucial for policy-making and strategic planning. For example, if a government wants to stimulate economic growth, understanding how different sectors contribute to overall output can help in designing effective interventions. If the agricultural sector is found to have a high multiplier effect on the economy, investments in this area could yield significant returns.Moreover, the input-output model can also be applied to environmental studies. By assessing the inputs and outputs in terms of natural resources and waste, researchers can evaluate the sustainability of certain practices. This application is particularly relevant in today’s context, where environmental concerns are at the forefront of public policy. By using the input-output model, we can identify which industries are the most polluting and develop strategies to mitigate their impact on the environment.In practice, constructing an input-output model involves collecting data on the transactions between different sectors of the economy. This data is typically represented in a matrix format, where rows indicate outputs and columns indicate inputs. Each cell in the matrix represents the value of transactions between specific sectors. This structured approach not only aids in clarity but also facilitates complex calculations that can predict the effects of changes in one sector on others.However, it is important to note that while the input-output model provides valuable insights, it also has limitations. The model assumes that relationships between inputs and outputs remain constant over time, which may not always be the case due to technological advancements or shifts in consumer preferences. Additionally, the model does not account for external factors such as inflation or changes in market conditions, which can significantly influence economic outcomes.Despite these limitations, the input-output model remains an essential tool for economists and policymakers. It offers a systematic way to analyze complex economic interactions and supports informed decision-making. As we move forward, integrating this model with other analytical tools and methodologies will enhance our understanding of economic dynamics.In conclusion, the input-output model serves as a powerful framework for analyzing the interdependencies within an economy. Its applications extend beyond traditional economics, reaching into environmental studies and strategic planning. By recognizing both its strengths and weaknesses, we can better leverage this model to navigate the complexities of modern economies and work towards sustainable development.

“输入-输出模型”是经济学和系统理论中的一个基本概念，有助于理解经济中不同组成部分如何相互作用。该模型本质上展示了输入流入系统以及产生的输出。通过分析这些流动，经济学家和分析师可以深入了解经济中各个部门的效率和生产力。例如，当我们考虑一家制造公司时，输入可能包括原材料、劳动力和资本，而输出则是销售给消费者的成品。“输入-输出模型”的一个主要优点是能够量化不同行业之间的关系。这种量化使得详细的经济分析成为可能，对政策制定和战略规划至关重要。例如，如果一个政府希望刺激经济增长，了解不同行业对整体产出的贡献可以帮助设计有效的干预措施。如果发现农业部门对经济有较高的乘数效应，那么在这一领域的投资可能会带来显著的回报。此外，“输入-输出模型”还可以应用于环境研究。通过评估自然资源和废物的输入和输出，研究人员可以评估某些实践的可持续性。在当今环境问题处于公共政策前沿的背景下，这一应用尤为相关。通过使用“输入-输出模型”，我们可以识别出哪些行业污染最严重，并制定减轻其对环境影响的策略。在实践中，构建“输入-输出模型”涉及收集经济中不同行业之间交易的数据。这些数据通常以矩阵格式表示，其中行表示输出，列表示输入。矩阵中的每个单元格代表特定行业之间交易的价值。这种结构化的方法不仅有助于清晰度，还促进了复杂计算，可以预测一个行业变化对其他行业的影响。然而，值得注意的是，尽管“输入-输出模型”提供了有价值的见解，但它也有局限性。该模型假设输入和输出之间的关系在时间上保持不变，这可能并不总是如此，因为技术进步或消费者偏好的变化。此外，该模型未考虑通货膨胀或市场条件变化等外部因素，这些因素可能显著影响经济结果。尽管存在这些局限性，“输入-输出模型”仍然是经济学家和政策制定者的重要工具。它提供了一种系统的方法来分析复杂的经济互动，并支持明智的决策。随着我们向前发展，将该模型与其他分析工具和方法结合起来，将增强我们对经济动态的理解。总之，“输入-输出模型”作为分析经济内部依赖关系的强大框架，其应用超越了传统经济学，延伸至环境研究和战略规划。通过认识到其优势和劣势，我们可以更好地利用这一模型，应对现代经济的复杂性，努力实现可持续发展。