Internal rate of return and Notional pooling: Difference between pages

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(IRR).  
''Banking''.


The technique used by banks for calculating interest on balances in a notional cash pool.


== Definition of IRR ==
Excess funds in the accounts of a company or its subsidiaries are used to offset deficits in other company accounts for the purpose of determining interest earned or owed.


The internal rate of return of a set of cash flows is the [[cost of capital]] which, when applied to discount all of the cash flows (including any initial investment flow at Time 0) results in a Net Present Value ([[NPV]]) of NIL.
Notional pooling is also referred to as interest offset pooling.


For an investor, the IRR of an investment proposal therefore represents their expected rate of [[return]] on their investment in the project.
'''Example'''
A project requires an investment today of $100m, with $110m being receivable one year from now.
The IRR of this project is 10%, because that is the cost of capital which results in an NPV of $0, as follows:
[[PV]] of Time 0 outflow $100m
= $(100m)
PV of Time 1 inflow $110m
= $110m x 1.1<sup>-1</sup>
= $100m
NPV = - $100m + $100m
= '''$0'''.
== Determining IRR ==
Unless the pattern of cash flows is very simple, it is normally only possible to determine IRR by trial and error (iterative) methods.
'''Example'''
Using straight line interpolation and the following data:
First estimated rate of return 5%, positive NPV = $+4m.
Second estimated rate of return 6%, negative NPV = $-4m.
The straight-line-interpolated estimated IRR is the mid-point between 5% and 6%.
This is '''5.5%'''.
Using iteration, the straight-line estimation process could then be repeated, using the value of 5.5% to recalculate the NPV, and so on.
The IRR function in Excel uses a similar trial and error method.
== IRR project analysis decision rule ==
In simple IRR project analysis the decision rule would be that:
(1) All opportunities with above the required IRR should be accepted.
(2) All other opportunities should be rejected.


== See also ==
* [[Cash pool]]
* [[Cross-guarantees]]
* [[Interest rate enhancement]]


However this assumes the unlimited availability of further capital with no increase in the cost of capital.
[[Category:Long_term_funding]]
 
[[Category:Cash_management]]
 
A more refined decision rule is that:
 
(1) All opportunities with IRRs BELOW the required IRR should still be REJECTED; while
 
(2) All other opportunities remain eligible for further consideration (rather than automatically being accepted).
 
 
== See also ==
* [[CertFMM]]
* [[Effective interest rate]]
* [[Hurdle rate]]
* [[Implied rate of interest]]
* [[Interpolation]]
* [[Iteration]]
* [[Linear interpolation]]
* [[Market yield]]
* [[Net present value]]
* [[Present value]]
* [[Shareholder value]]
* [[Yield to maturity]]

Revision as of 09:54, 9 October 2013

Banking.

The technique used by banks for calculating interest on balances in a notional cash pool.

Excess funds in the accounts of a company or its subsidiaries are used to offset deficits in other company accounts for the purpose of determining interest earned or owed.

Notional pooling is also referred to as interest offset pooling.


See also