Pricing American interest rate options under the jump-extended constant-elasticity-of-variance short rate models

This paper demonstrates how to value American interest rate options under the jump-extended constant-elasticity-of-variance (CEV) models. We consider both exponential jumps (see Duffie et al., 2000) and lognormal jumps (see Johannes, 2004) in the short rate process. We show how to superimpose recombining multinomial jump trees on the diffusion trees, creating mixed jump-diffusion trees for the CEV models of short rate extended with exponential and lognormal jumps. Our simulations for the special case of jump-extended Cox, Ingersoll, and Ross (CIR) square root model show a significant computational advantage over the Longstaff and Schwartz’s (2001) least-squares regression method (LSM) for pricing American options on zero-coupon bonds.     

As Different as Chalk and Cheese? The Relationship Between Entrepreneurial Orientation and SMEs’ Growth: Evidence from Russia and Finland

The purpose of this study is to investigate the relationship between entrepreneurial orientation (EO) and firm growth and the moderating role of business environment for Russian and Finnish small- and medium-sized enterprises (SMEs). For hypothesis testing, structural equation modeling is applied to the data set of 104 Russian and 117 Finnish privately owned SMEs. Results show that while in the Finnish market context EO dimensions are directly associated with firm growth, in the emerging Russian market the relationship is moderated by the dynamic and hostile environment. The results also provide evidence of the nature of EO for SMEs operating in Russia.