Analysis of Determinants of Country Credit Rating Change Focused on the Economic Crisis Countries

2017 ◽  
Vol 1 (2) ◽  
pp. 67-94
Author(s):  
Ho-Ill Kim ◽  
◽  
Xin Zhang ◽  
Shi-Kwan Yan ◽  
◽  
...  
2017 ◽  
Vol 1 (2) ◽  
pp. 68-97
Author(s):  
Ho-Ill Kim ◽  
◽  
Xin Zhang ◽  
Shi-Kwan Yan ◽  
◽  
...  

2018 ◽  
Vol 11 (4) ◽  
pp. 87 ◽  
Author(s):  
Hong-Ming Yin ◽  
Jin Liang ◽  
Yuan Wu

In this paper, we consider a new corporate bond-pricing model with credit-rating migration risks and a stochastic interest rate. In the new model, the criterion for rating change is based on a predetermined ratio of the corporation’s total asset and debt. Moreover, the rating changes are allowed to happen a finite number of times during the life-span of the bond. The volatility of a corporate bond price may have a jump when a credit rating for the bond is changed. Moreover, the volatility of the bond is also assumed to depend on the interest rate. This new model improves the previous existing bond models in which the rating change is only allowed to occur once with an interest-dependent volatility or multi-ratings with constant interest rate. By using a Feynman-Kac formula, we obtain a free boundary problem. Global existence and uniqueness are established when the interest rate follows a Vasicek’s stochastic process. Calibration of the model parameters and some numerical calculations are shown.


Significance Discontent over President Robert Mugabe's mismanagement of the economy is deepening, particularly over high unemployment and severe cash shortages, which have caused the government to delay paying civil servants' salaries. Impacts Pretoria's demands that Harare drop its restrictions on South African imports will likely increase bilateral tensions. Smugglers will take advantage of the region's porous borders to circumvent these rules, eg by routing goods via Mozambique. The mines and minerals amendment bill, which requires mining firms to list on the local bourse, will likely deter investment. Tensions between Finance Minister Patrick Chinamasa and leftist ministers could result in further policy reversals. Plans to gain a sovereign credit rating and issue Eurobonds to fund development will remain unrealised, at least for several years.


2017 ◽  
Vol 13 (3) ◽  
pp. 563-585 ◽  
Author(s):  
Min-Shik Shin ◽  
◽  
Jae-Ik Lee ◽  
Ho-Yeong Jeong ◽  
◽  
...  

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