I can't give you an essay scaffold or a plan right now but as an econ major I can give you the following advice:
The plan:
Introduction:
First sentence: Directly answer the question with no fluff. For example, if the question is asking "How did China's 1979 economic reform contributed to its rapid growth of GDP"? You can say: There are four reasons why China's economic reform rapidly contributed to its rapid GDP growth.
Second, third, and/or fourth sentence: List all the features or things that contributes to the argument to your first sentence. These are your "this includes xxx, which xxx to China's capital market." And "Another factor is xxx, which contributed to China's immense supply of international goods and services market", and other factors such as very strong emphasis on education, investment, technological advancement, etc. You should list as much of the biggest factors as possible, but also beware of word and time because you may not have enough time if you listed too much features. Somewhere around 3-4 is a good number.
Paragraphs (repeat this two to three, four, or five times):
First sentence: This sentence should be telling WHY does the your listed feature contributes to the answer, each paragraph should only talk about one of them. For example, you should be only talking about the capital market part in your first sentence and the rest of the paragraph.
Secondsentence: Give the stats and/or examples.
Third sentence: Explain why does the example have this effect, always use the term BECAUSE if you can because it's really helpful.
Fourth or fifth: Repeat the above process written on the second and third sentence if you have more examples.
Sixth sentence: This is the "these example all show" sentence, you're mission here is to answer what these examples all have in common that contributes to your argument stated in the first sentence of your introduction
Conclusion:
First sentence: Restate your central thesis.
Second, third and/or fourth sentence: Restate all your central thesis of each paragraph in a summarised way
Last sentence: This is your "in summary", or "therefore" sentence (You can think of it as your "so basically," sentence but please don't use that phrase in your assignments and the exam). Summarise the gist of your essay in an explaining way. Just imagine if you're summarising one punch man to a buddy who has never watched it, it's essentially the same as that.