How To Write Your IA
How To Write Your IA
- choosing an article
The first step in the process is to find a suitable commentary. The easiest way is to search for an
article, via the Internet and you will be able access articles by putting suitable command terms
into a search engine. The three commentaries need to be taken from different parts of the
syllabus, so you must choose 3 out of the four syllabus areas - microeconomics,
macroeconomics, international economics and development economics. Read through several
articles before making your selection. Articles can be in any language but will need to be
translated into the working language of the school. All articles must be from three different
sources and published no longer than 12 months before the commentary is written. As a general
rule shorter articles can be easier to use than longer ones, given the strictly enforced word limit
of 800 words. If you find an article that you particularly want to use, which is very long or contains
multiple points then simply highlight the sections of the article that you wish to base your IA on.
Articles do not necessarily need to be about economics. Candidates can apply economic theory
to a number of newspaper articles. For instance, an article about the new television deal for the
Premier League and its impact on players wages could easily be incorporated into a commentary
about microeconomics (PED / PES theory).
When writing the IA a common misconception by many IB students is that the task involves
simply summarising or paraphrasing the article. Instead examiners are looking for evidence that
the candidate has related the article to the economic theory that they have learnt during their
course. Try to remember that the aim of each commentary is to demonstrate your ability in the
subject.
Try to think very carefully about what you intend to include in your commentary and not write
anything which will not directly lead to marks from the criteria. Quotes from the article are good
and should be included but must be short in length – no more than 2 sentences in length. One
short sentence in length is better still.
Your commentary is about a deep understanding of one part of the course so when you start
writing your commentary think first about what is the appropriate economic concept or theory and
stick to this – do not jump around between topics. For instance do not start writing a
commentary about international trade and then dedicate paragraphs to the impact on national
income. This is because they are separate sections of the course and each commentary needs
to be based on a separate section of the course – microeconomics, macroeconomics and
International / development economics.
When submitting your commentary you will include, for each commentary, the article itself
plus the following information:
Try to stick to the following structure as closely as possible. Start with your introduction, stating
briefly what the central theme of the article is and this is also where you include your definitions
and command words. This will be similar to the paper 1 examination where candidates start by
writing the important key terms. Unlike the exam, however, you are not required to write down a
list of definitions. Instead, candidates are expected to use terms ‘appropriately’. Only two marks
are available for this section. Use only economic terminology so rather than saying buyer or
customer use the word consumer, expenditure rather than spending, utility rather than pleasure
etc.
The main skill of writing the commentary is to focus on one really important economic concept
and develop it. If there is more than one economic theory in the article, stay focused on this
rather than getting distracted by other areas of the syllabus. The IB allows you to highlight which
of the features you are choosing to focus on when completing your work. This should be around
150 words in length.
Draw the diagram
After your introduction you should draw your main diagram. This should be given a title and be
fully labelled. None of this is included in your word count. The diagram that you choose should
be the problem explained in the article. The
diagram
should also include your solution to the problem.
The diagram to the right, for example, relates to an article focusing on traffic congestion in a
city. The diagram includes the social costs of the externality and the size of the welfare
loss. The equilibrium level of output (Qo) and the socially efficient level (Qse) are labelled.
The government can place a tax on car journeys in the city by imposing an electronic pricing
mechanism on each journey into the city. This is shown by a left shift in the supply curve from
S=MPC to S=MSC=MPC+tax, as the sales tax adds to the costs of driving. At higher prices (P2)
car owners are less willing and able to drive their cars in the city. If the level of tax is set at the
correct level, equal to the size of the negative externality, then the number of car journeys should
fall to a more socially optimum level, represented on the diagram by Qse. This policy will
internalise the externality caused by traffic congestion, i.e. make the external costs to society
payable by the consumer.
Sometimes both the problem and the solution can be illustrated on one diagram and on other
occasions it cannot.
Develop Your argument (100 words)
Having explained your diagram you should now focus on developing your solution and this is
where you link the article to the economic theory that you have learnt in your course. So in the
example above the article may be about traffic in a city. However, your commentary should
focus on the concepts of externalities and how governments may internalise the externalities
rather than the traffic itself.
The size of the tax should be equal or greater to the size of the negative externality. For instance
if the government calculates that congestion in the city creates 100 million $ per day in external
costs and there are currently 10 million cars entering the city, each day, then the size of the tax
should be $ 10 per day.
Evaluation means that you should evaluate your solution to the problem, including looking at the
strengths and weaknesses of the solution you have identified. As part of this section alternative
solutions e.g. improved public transport should be considered and again illustrated on your
diagram, by a fall in demand for car journeys in the city. A potential solution might also involve a
combination of policies e.g. taxing car journeys and improvements to public transport.
Include references to the key concept throughout the commentary, highlighting the concept
whenever it is used. You should also add in a separate (stand alone) paragraph explaining how
the key concept is relevant to the chosen article.
Conclusion
Bibliography
The last part of your commentary and the words included here, like the title page, diagrams e.t.c.
are not included in the word count.