Risk measures and the impact of asset price bubbles

I examine the impact of alternative monetary policy rules on a rational asset price bubble, through the lens of an overlapping generations model with nominal rigidities. A systematic increase in interest rates in response to a growing bubble is shown to enhance the fluctuations in the latter, through its positive effect on bubble growth. The optimal monetary policy seeks to strike a balance between stabilization of the bubble and stabilization of aggregate demand. The paper's main findings call into question the theoretical foundations of the case for “leaning against the wind” monetary policies. (JEL E13, E32, E44, E52, G12)

Download Full-text

The effect of stressed economic conditions on operational risk loss distributions

South African Journal of Economic and Management Sciences ◽

10.4102/sajems.v13i4.25 ◽

2010 ◽

Vol 13 (4) ◽

pp. 577-492 ◽

Cited By ~ 2

Author(s):

Ja'nel Esterhuysen ◽

Gary Van Vuuren ◽

Paul Styger

Keyword(s):

Conflicts Of Interest ◽

Asset Price ◽

Operational Risk ◽

Credit Crisis ◽

Rating Agencies ◽

Asset Price Bubbles ◽

Price Bubbles ◽

Regulatory Controls ◽

The Impact ◽

Excessive Risk Taking

The depth and duration of the credit crisis has highlighted a number of problems in modern finance. Banks have been accused of excessive risk taking, rating agencies of severe conflicts of interest, central banks of neglecting the inflation of asset price bubbles and national supervisors of lax regulatory controls. Credit and market losses have been considerable. Operational losses have also surged as surviving corporates merge or acquire less fortunate ones without the requisite controls. Furthermore, as more jobs get made redundant it is believed that people are getting forced to play their hand to get involved in internal fraud as their sources of income has dried up drastically and stealing from the institution seems to be their last resort.. The main objective of this paper is to establish if there has been a changed in the nature of operational risk with regards to the number of operational losses as well as their impact pre and during the crisis. The way in which operational losses have been affected will be presented and a comparison will be made between operational loss characteristics pre and during the crisis. Some of the main findings of this paper were that operational losses shown little change in frequency, but shown a significant increase in severity, meaning that their financial impact has been more severe during the crisis. Therefore it is quite safe to say that the financial crisis most defiantly had an impact on operational risk as the impact of operational losses became much more severe

Download Full-text