Increase Field Limit for New/Add Asset Variance on Real Return (field currently max'd at 199.9%)
A couple of the pre-canned assets in ESP have a variance on real return in excess of 200%, but the new asset dialog will not allow the user to enter a value over 199.9%. (I'm referring to "Step 3" as described in Dr Kotloikoff's Feb 09 post, pasted below.)
Thanks,
drr
------------------------
From: Laurence Kotlikoff
Hi, in the Monte screen, when you enter a New Asset, we ask you in Step 2 to specify a) the expected nominal return (given this value and your inflation assumption, we determine the expected real return on your New Asset),
In Step 3 we ask you to enter the variance of the real return on your New Asset expressed as a percentage of the variance of the real return on large cap stocks. (FYI, the variance of the real return on large cap stocks historically has been .0426 and he square root of this, called the standard deviation, has been .2064). As of 2/23/09, the variances of the real returns of our canned assets expressed as a percentage of the variance of large caps are given in the table below. These values may help you decide what to enter in step 3 for your New Asset.
Variance of the real return on our canned assets expressed as a percentaage of the variance fo the real return on large cap stocks as of 2-23-09
Cash 5.22%
Large Cap Stocks 100.00%
Small Cap Stocks 231.66%
Long Term Corporate Bonds 22.58%
Long Term Government Bonds 25.47%
Long Term Inflation-Indexed US Gov Bonds .21%
Intermediate Government Bonds 11.56%
Short Term Government Bonds 4.22%
Non-US Equity 96.15%
Pacific Basin 185.39%
European Equity 90.13%
Emerging Markets 208.58%
REITs 67.18%
In Step 4, you need to enter the value of beta for your new asset. Listed below are the Betas as of 2-23-09 for our canned assets. They will give you an idea of what to enter for your New Asset. A beta is measured as the ratio of the covariance of the the real return on the asset in question with the real return on stocks divided by the variance of the real return on large caps.
Betas for Our Canned Assets as of 2-23-09
Cash 0.044956366
Large Cap Stocks 1.00
Small Cap Stocks 1.147
Long Term Corporate Bonds 0.117
Long Term Government Bonds 0.096
Long Term Inflation Indexed Government Bonds 0.006
Intermediate Government Bonds 0.049
Short Term Government Bonds 0.024
Non-US Equity 0.057
Pacific Basin 0.054
Europe 0.063
Emerging Markets -0.315
REITs -0.193
RSS
I'm assuming that you would like to be able to enter a variance > 200% for user defined assets. I've notified the appropriate folks and well see if we can get this into the next update. Of course, the real question is if there is a reasonable maximum number that should be allowed. Do you have any suggestion for a maximum?
I agree that it should be at least as big as the variance of the assets that we use routinely, but how big should it be?
Best,
Dick Munroe
Dick,
I'm not sure what a reasonable max might be, but something >800% would help me. The existing limit has worked fine for everything I needed, except for a 10-stock non-retirment portfolio that I'd like to add.
Thanks for considering this,
drr
I've passed your requirements on to the primary UI developer. It should be in the next release.
Best,
Dick Munroe