statistics-lab™ 为您的留学生涯保驾护航 在代写宏观经济学Macroeconomics方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在代写宏观经济学Macroeconomics代写方面经验极为丰富，各种代写宏观经济学Macroeconomics相关的作业也就用不着说。

• Statistical Inference 统计推断
• Statistical Computing 统计计算
• (Generalized) Linear Models 广义线性模型
• Statistical Machine Learning 统计机器学习
• Longitudinal Data Analysis 纵向数据分析
• Foundations of Data Science 数据科学基础

## 经济代写|宏观经济学代写Macroeconomics代考|Should LeBron James Mow His Own Lawn

LeBron James is a great athlete. One of the best basketball players of all time, he can jump higher and shoot better than most other people. Most likely, he is talented at other physical activities as well. For example, let’s imagine that LeBron can mow his lawn faster than anyone else. But just because he can mow his lawn fast, does this mean he should?

To answer this question, we can use the concepts of opportunity cost and comparative advantage. Let’s say that LeBron can mow his lawn in 2 hours. In those same 2 hours, he could film a television commercial and earn $\$ 30,000$. By contrast, Kaitlyn, the girl next door, can mow LeBron’s lawn in 4 hours. In those same 4 hours, Kaitlyn could work at McDonald’s and earn$\$50$.

In this example, LeBron has an absolute advantage in mowing lawns because he can do the work with a lower input of time. Yet because LeBron’s opportunity cost of mowing the lawn is $\$ 30,000$and Kaitlyn’s opportunity cost is only$\$50$, Kaitlyn has a comparative advantage in mowing lawns.

The gains from trade here are tremendous. Rather than mowing his own lawn, LeBron should film the commercial and hire Kaitlyn to mow the lawn. As long as LeBron pays Kaitlyn more than $\$ 50$and less than$\$30,000$, both of them are better off.

## 经济代写|宏观经济学代写Macroeconomics代考|Should the United States Trade with Other Countries

Just as individuals can benefit from specialization and trade with one another, so can populations of people in different countries. Many of the goods that Americans enjoy are produced abroad, and many of the goods produced in the United States are sold abroad. Goods produced abroad and sold domestically are called imports. Goods produced domestically and sold abroad are called exports.
To see how countries can benefit from trade, suppose there are two countries, the United States and Japan, and two goods, food and cars. Imagine that the two countries produce cars equally well: An American worker and a Japanese worker can each produce one car per month. By contrast, because the United States has more fertile land, it is better at producing food: A U.S. Worker can produce 2 tons of food per month, whereas a Japanese worker can produce only 1 ton of food per month.

The principle of comparative advantage states that each good should be produced by the country that has the lower opportunity cost of producing that good. Because the opportunity cost of a car is 2 tons of food in the United States but only 1 ton of food in Japan, Japan has a comparative advantage in producing cars. Japan should produce more cars than it wants for its own use and export some of them to the United States. Similarly, because the opportunity cost of a ton of food is 1 car in Japan but only 1/2 car in the United States, the United States has a comparative advantage in producing food. The United States should produce more food than it wants to consume and export some to Japan. Through specialization and trade, both countries can enjoy more food and more cars.

To be sure, the issues involved in trade among nations are more complex than this example suggests. Most important, each country has many people, and trade may affect them in different ways. When the United States exports food and imports cars, the impact on an American farmer is not the same as the impact on an American autoworker. As a result, international trade can make some individuals worse off, even as it makes the country as a whole better off. Yet this example teaches an important lesson: Contrary to the opinions sometimes voiced by politicians and pundits, international trade is not like war, in which some countries win and others lose. Trade allows all countries to achieve greater prosperity.

## 经济代写|宏观经济学代写Macroeconomics代考|Conclusion

You should now understand more fully the benefits of living in an interdependent economy. When Americans buy tube socks from China, when residents of Maine drink orange juice from Florida, and when a homeowner hires the kid next door to mow her lawn, the same economic forces are at work. The principle of comparative advantage shows that trade can make everyone better off.

Having seen why interdependence is desirable, you might ask how it is possible. How do free societies coordinate the diverse activities of all the people involved in their economies? What ensures that goods and services will get from those who should be producing them to those who should be consuming them? In a world with only two people, such as Ruby the rancher and Frank the farmer, the answer is simple: These two people can bargain and allocate resources between themselves. In the real world with billions of people, the answer is less obvious. We take up this issue in the next chapter, where we see that free societies allocate resources through the market forces of supply and demand.

## 有限元方法代写

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## MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。