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IB

Describe why excess profits can't be made in a competitively perfect market.

An example introduction to an essay question would be: Under perfect competiton we make the follwing assumptions: Homogoenous products. There are many buyers and sellers and each one is so small that no i...

HE
Answered by Hasan E. Economics tutor
1912 Views

How am I able to make my written Spanish composition stand out from the rest, if I want to achieve that 7 grade?

Without a doubt, one of the key components of a top composition for Higher or Standard level IB Spanish is that the candidate is able to find a natural, fluid balance between the content and argument of h...

AK
Answered by Adam K. Spanish tutor
1350 Views

What are positive externalities of consumption? Explain with a diagram and give an example.

Externalities are effects that occur, due to a transaction, on third parties (people who were not involved in the original transaction). Hence, positive externalities of consumption are produced when the ...

JC
Answered by Joseph C. Economics tutor
13283 Views

How to find the derivative of sqrt(x) from first principles?

Graphical explanation leading to the expression that we need to develop (Lim(a->0) (sqrt(x+a) - sqrt(a))/(a). Then we need to understand how to rearrange a fraction involving square roots (multiplicati...

OD
Answered by Olivier D. Maths tutor
1642 Views

When talking about past actions, when do I use imparfait, and when do I use passé composé?

There are multiple differences between the uses of imparfait and passé composé, perhaps the most important being that passé compose is used for singular events, whereas imparfait is used for past actions ...

EB
Answered by Emil B. French tutor
2541 Views

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