ECON2420 Semester 2 2024 No. 3Java

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Java Python ECON2420 Semester 2, 2024

Assignment No. 3

Assessment weight: 40%

Available Friday 11 October. Due date: Friday 25 October, 4pm.

Word length: The required word length is roughly the equivalent of 2500 words or 5x A4 pages in 11 or 12 point font with standard margins. The length is ‘equivalent’ to 2500 words because where diagrams are required a diagram should occupy approximately one third of an A4 page. Assignments that are more than 10% in excess of the length described here will be penalised.

Your answers should be typed, but diagrams may be either created with software (e.g. Word, PPT or other) or neatly hand-written.

See further instructions for submission in the assessment folder.

Unless an extension has been granted, a penalty of 4 marks (out of 40) will be deducted per day for up to 7 calendar days, at which point any submission will not receive any marks.

Answer all of the four (4) questions. Not all answers need to be of the same length.

Marking criteria: For all questions, marks will be awarded according to:

· Application and analysis of appropriate economic models, including diagrammatic analysis where required;

· Clarity and coherence of explanations of economic mechanisms;

· Quality of writing and overall presentation.

Overview of this assignment.

This assignment requires you to analyse the Reserve Bank of Australia Statement on Monetary Policy, February 2024. The questions below require you to explain various graphs and statements in the RBA’s document in terms of the models, concepts and economic mechanisms that have been covered in this course up to and including Week 9 (i.e. the topic on monetary policy). You should, where appropriate, illustrate your answers with appropriate diagrams that explain the economic models and concepts discussed in the course.

Question 1 (RBA, Chapter 1)

(i) Given the recent changes in 10-year government bond yields in Graph 1.4, explain the statement (page 7) that “this may reflect greater confidence that policy rates have peaked”.

[4 marks]

(ii)  Explain the relationship between t ECON2420 Semester 2, 2024 Assignment No. 3Java he data in the top half and the bottom half of Graph 1.7.

[4 marks]

(iii) Explain reason(s) for the sharp jump in the saving rate in 2019-20, illustrated in Graph 1.18.

[2 marks]

[10 marks]

Question 2 (RBA, Chapter 2)

(i) Discuss the relationship between inflation and unemployment in the past 2 years as shown in Graphs 2.3 and 2.4. In particular, discuss the data in terms of aggregate demand, aggregate supply and the Phillips Curve.

[4 marks]

(ii) Consider the most recent data and the outlook for consumption in China (Graph 2.6 and related discussion). Which driver(s) of consumption explains this most recent data and outlook?

[3 marks]

(iii) Explain in theory the relationship between the two time series in Graph 2.15.  Are the data consistent with the theory? Can the data in Graph 2.14 provide insights into the data in Graph 2.15?

[3 marks]

Question 3 (RBA, Chapter 2, 4)

(i) Provide a diagrammatic analysis and explanation of the discussion in Section 2.4 in terms of AD, AS and the labour market.

[5 marks]

(ii) Consider the data and associated discussion around Graphs 3.4, 3.5 and 3.7.  Explain what evidence this provides about movements along a Phillips curve between 2018 and 2023.

[5 marks]

[10 marks]

Question 4 (RBA, Chapter 3)

(i) Consider the data in Table 3.1. What does the data indicate about the likely change in the current account balance from December 2024 to June 2026? Provide detailed numerical information from the table to support your answer. Is there any additional data required to make a more precise calculation?

[5 marks]

(ii) What do the data in Table 3.1 indicate about the forecast impact of the economy on the Australian Government’s budget balance from December 2024 to June 2026? You do not need to give a numerical forecast for the budget balance. Rather, use the numerical data in the Table to indicate the plausible impact of the economy on government revenues and expenditures, and hence on the overall balance         

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你遇到的问题是: ``` file https://rlhick.people.wm.edu/econ407/packages/stata.toc not found r(601); command wooldridge is unrecognized r(199); ``` 这说明 **Stata 无法安装 `wooldridge` 包**,原因是原链接已经失效(网站改版或文件被移除)。你访问的地址: > `https://rlhick.people.wm.edu/econ407/packages/` 现在返回一个 404 错误,不再提供有效的 Stata `.toc` 文件,因此 `net install` 失败。 --- ## ✅ 解决方案:使用替代方式获取 Wooldridge 教材数据 别担心!虽然那个旧链接失效了,但有 **更稳定、官方推荐的方式** 来获取 Jeffrey M. Wooldridge 的教材配套数据。 --- ### ✅ 方法一:通过 **Boston College (BC) 官方数据仓库** 手动下载(最可靠) Wooldridge 数据集托管在 **Boston College 经济系的数据服务器** 上。 🔗 访问这个网址: > [https://fmwww.bc.edu/ec-p/data/wooldridge.html](https://fmwww.bc.edu/ec-p/data/wooldridge.html) 这是目前最权威、最稳定的来源。 #### 步骤如下: 1. 打开上面链接。 2. 找到你想用的数据集,比如: - `wage1.dta` → 对应《Introductory Econometrics》第4章 3. 点击链接下载 `.dta` 文件(例如点击 "wage1") 4. 保存到你的电脑,比如桌面或项目文件夹。 然后在 Stata 中加载: ```stata use "C:\Users\你的用户名\Desktop\wage1.dta", clear ``` 或者如果你知道网络直链,可以直接用: ```stata use https://fmwww.bc.edu/ec-p/data/wooldridge/wage1.dta, clear ``` ✅ 这个命令可以直接运行,无需安装任何包! --- ### ✅ 方法二:使用新版社区命令 `bcstats`(包含 wooldridge 数据支持) 有人维护了一个新包叫 `bcstats`,可以方便地调用 BC 的数据。 #### 安装方法: ```stata * 安装 bcstats(仅一次) net from https://fmwww.bc.edu/repec/bocode/b net install bcstats, from(https://fmwww.bc.edu/repec/bocode/b) * 使用:加载 wage1 bcuse wage1, clear ``` 📌 注意:这里命令是 `bcuse` 而不是 `use`,它是专门用来从 BC 下载数据的。 #### 示例完整代码: ```stata * 加载 wage1 数据(来自 Wooldridge 教材) bcuse wage1, clear * 查看数据信息 describe * 生成对数工资 gen lwage = ln(wage) * 回归分析 reg lwage educ exper tenure female ``` ✅ 推荐使用这种方法,简洁又稳定! --- ### 🧩 常见 Wooldridge 数据集名称对照表 | 数据名 | 描述 | |------------|----------------------------| | `wage1` | 工资与教育回报率(横截面) | | `jtrain2` | 就业培训效果评估 | | `kmenta` | 食品需求模型(可用于 IV 回归教学) | | `crime1` | 犯罪行为影响因素 | | `pension` | 养老金与就业决策 | 都可以通过: ```stata bcuse 数据名, clear ``` 来加载。 --- ### ❌ 为什么原来的 `net install wooldridge` 不工作? - 原作者 Richard Hick 暂时关闭了该服务; - 他的个人网页结构改变,`stata.toc` 文件缺失; - 社区尚未完全迁移这个包,所以不要浪费时间重试。 --- ### ✅ 总结:你现在应该怎么做? ✅ **正确做法(任选其一)** #### ✔️ 推荐方案 1:使用 `bcuse` 命令(在线一键加载) ```stata * 只需运行一次安装 net install bcstats, from(https://fmwww.bc.edu/repec/bocode/b) * 之后每次都能用 bcuse 加载数据 bcuse wage1, clear ``` #### ✔️ 推荐方案 2:手动下载 + use 去: > [https://fmwww.bc.edu/ec-p/data/wooldridge.html](https://fmwww.bc.edu/ec-p/data/wooldridge.html) 点击 `wage1`,浏览器会自动下载 `wage1.dta`,然后: ```stata use "你的路径\wage1.dta", clear ``` --- ###
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