The negative tag has no wiki summary.
3
votes
3answers
117 views
Avoiding negative volatility when applying Heston model
When applying the Heston model to generate the sample volatility surface, some of the volatility value will be negative. I am just wondering what do practioners normally do with these negative value. ...
2
votes
1answer
124 views
Why for one year (and not two or three) government bonds (there is a spike for Switzerland & Denmark)?
On 10.10.2012, I have looked at the bond-rates and, both for Switzerland and Denmark, there is a discontinuity/spike at 1Y, as per below
Switzerland: ON= -0.09, 1W= -0.180, 1M= -0.230, 3M= -0.2, 6M= ...
0
votes
0answers
48 views
Modelling the magnitude of negative interest rates as depending on the deposited volume
The discounting curves are generally inferred from zero coupon bonds, especially for short rates, where such zero coupon bonds exist. Given the recent governmental negative interest rate bonds, this ...
1
vote
0answers
50 views
Neglect the positive values in negative interest rates modelling?
The magnitude of the negative interested rate should vary correlated with the increase in fixed assets prices and with cross-currency basis spreads.
Could their volatility / correlation ...
0
votes
0answers
36 views
The observed negative interest rates should be modelled as the observed positive ones?
The presently observed negative interest rates for the recently emitted negative interest bonds by France, etc seem to increase in magnitude with the term. This might suggest that their modelling is ...
0
votes
0answers
43 views
Jumps in the evolution of observed negative interest rates related to changes in credit ratings?
If credit risk is to be considered completed integrated in the market prices (integrated credit and market risk), the change in the credit rate will trigger the change in the interest rate/market ...
0
votes
0answers
64 views
Split in two the observed negative interest rates (theoretically always positive/negative)?
An autoregressive model to get the future evolution a non-jumpy evolution of the interest rates seems a good option , but not taking into account the possible future variations in credit rate states ...
0
votes
0answers
44 views
Bibliography and historical data relevant to negative interest rates modelling
For a project, I am interested to model the impact of recently negative interest bonds on the portfolio.
From this point of view, the literature I have found is limited.
I am asking for some ...
0
votes
1answer
57 views
Separated software and physical cash flows modelling and pricing to be used with negative interest rates?
The physical cash presence in the final transactions is one of the issues in the presently observed negative interest rates bonds. Such a situation has historically been modelled within the "liquidity ...
0
votes
0answers
53 views
Should portfolio be optimized by marking to the future than marking to market (excluding currencies)?
Observing the negative interest bonds in Switzerland, Denmark, GErmany the value of higher presently (credit-free) outgoing cash flows seems less important than the value of lower future (credit-free) ...
2
votes
0answers
160 views
Is inverted Japanese style curve persistent when negative rates are real / market - observed?
The time evolution of inverted curves does model / forecast a future recession and not necessarily contains the current liquidity- / credit-related aspect. The historical Japanese style inverted yield ...
