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Define the term ‘externalities’

An externality is a positive or a negative effect experienced by a third-party to an economic transaction. In production for example, an externality would occur when there is a difference in the marginal pri...
EE
Answered by Edward E. • Economics tutor
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Solve 2x+y=6, 3x+2y=3 for x and y.

Give each equation a label:(1) 2x+y=6(2) 3x+2y=3Multiply one equation to make the number of x's or y's the same in each equation. 2 X (1) : 2(2x+y=6) 4x+2y=12 (2) 3x+2y=3There are now 2y's in each equation t...
EW
Answered by Emily W. • Maths tutor
4503 Views

At room temperature and pressure, the first 4 alkanes are all gases, but the first 4 alcohols are all liquids. Explain this.

Alkanes are non-polar so only have London forces between them. These intermolecular bonds are weak, and easily overcome with little energy. This means that alkanes have a low boiling point hence they are gas...
AE
Answered by Ayolola E. • Chemistry tutor
17584 Views

In a perfectly competitive labour market, explain how equilibrium wages are determined by the forces of supply and demand.

The labour market is a factor market, which is a market where the factors of production are traded. The supply of labour comes from the pool of economically active citizens who want to be employed. Labour de...
AJ
Answered by Anish J. • Economics tutor
2908 Views

Outline two cognitive explanations for depression (6 marks).

One cognitive explanation involves Ellis’s ‘ ABC Model’ (1962). Ellis explains that the key to depression lies in irrational thinking. ‘ A ’ represents an activating event - for instance being fired from wor...
SS
Answered by Simran S. • Psychology tutor
16547 Views