I also have one more question on chapter 8, I couldnt understand very well, when the fund is contracting and company has unrealised gains, in what situation discounting of taxation is required and in what situation discounting wont be required? the paragraph written on core read(in unbold font) is not very clearly setting out the difference between the situations
To recap, the deferred tax adjustment for an unrealised gain on equities and property held in a BLAGAB fund is determined as:
indexed unrealised gain x tax rate t x discount factor v^n.
n represents the time period between the unit pricing date (ie now) and when the underlying assets are expected to be sold. This recognises the fact that the tax is not payable until the gains are actually realised.
For an expanding fund where there is no direct need to realise assets for liquidity purposes (since cash coming in exceeds cash going out), n needs to be estimated by considering things like how active the trading strategy is for that fund.
However, when the fund starts to contract the company needs to reconsider the value of n because it is now going to be forced to start selling its equities and property in order to obtain the cash required to pay the outflows.
So, the company might just decide to set n=0 to make things easier. In which case, there would be no discounting.
Or, it might not actually have to change the n that it was using when it was expanding because n might already be assuming that some assets would be sold in the very short term. For example, the company might have had quite an active trading strategy, so n could have been quite small already (even zero) for some of its assets. [The difference when the fund is contracting is that the cash obtained from the sale would be used to pay for outflows of claims, rather than being used to buy new attractive assets when the fund is expanding.]
Alternatively, the company might just reduce n to somewhere between 0 and what it was when the fund was expanding.
This is what that paragraph is trying to get across. Hope that makes it clearer?