4.2+Graphing+Economic+Activity

2. How can economic activity classification be graphically represented?
Must have links: [] will show you economic activity by % of people working in each of the first 3 sectors for most countries of the world [] will show the earning power by sector for most countries

The most usual method is using pie charts. This is because the 3 classes that form the bulk of the official economic activity, primary, secondary and tertiary are often recorded as % - the quaternary is so small that it does not register – and thus show up clearly on pie charts which only show proportions rather than absolute value. Thus comparing different places with different populations/GDPs are much easier this way. Recall that Malaysia is an ** MIC ** (** M **iddle ** I **ncome ** C **ountry) Afghanistan is an ** LIC ** ( ** L **ow ** I **ncome ** C **ountry) Australia is an ** HIC ** (** H **igh ** I **ncome C ountry) Some things to think about: Assuming these graphs are fairly typical of each type, - LIC,MIC,HIC – 1. What do you notice about the patterns of primary economic activity in relation to the increase in income of a country? Why do you think that is? 2. What do you notice about the patterns of tertiary economic activity in relation to the increase in income of a country? Why do you think that is? 3. The pattern of secondary economic activity forms a bit of an odd pattern – starting with the smallest, what is the order – any one any idea about why this might be? The patterns and the reasons for them will be further talked about in the next section

Here is an odd type of graph that you may come across – it is of very limited use but great for those special jobs. If you are measuring 3 items that add up to a fixed number – like 100% - then this is the best graph! But they are bit tricky until you get your head around them



Another way to look at it, is to slope your line at 60 degrees to the 10 on the axes you are looking at. So site 1 on this graph is Making it a bit more accurate: Can you work out site 2, site 3 and site 4 (see bottom of the page for the answers)
 * <10% immigration
 * >30 but <40 % other services
 * And exactly 60% gentrification
 * 5%, 35% and 60%, going clockwise from the base.

Now, if we disregard quaternary as being insignificant, we can put economic activity using this graph too.

This one is tricky as they have reversed the direction – so you will have to too! If we do them in the order primary secondary and tertiary – and I do 2 of them, can you work out the others? Hong Kong: 2% primary - 34% secondary - 64% tertiary Myamar: 83% primary - 8% secondary - 9% tertiary (**see helpful answers at the end**)

Could you add this to the graph above? Italy: ** agriculture: **4% ; ** industry: ** 31% ; ** services: ** 65% [|Zimbabwe] : ** agriculture: **66% ; ** industry: ** 10% ; ** services: ** 24% (1996)

Another way to compare places is by compund bar charts: 2 lines have been added to divide up countries by primary production. What is common to those countries that have less than 10% of workers in primary production? And to those with more than 60% primary production? And those in between?

Comparison over time:
If you have information over a period of time you could do a pie graph for each period of time, like this this: Now take a look at the graphs above – do you notice and similarities? (again for an explanation look in the next section). But to see the pattern of change more easily, a complex line graph is more useful

Look at each sector line and see what pattern you can find – can you think of an explanation for it? Do any of the countries we have looked at mirror any approximate years?