MHB Is this financial market viable?

  • Thread starter Thread starter WMDhamnekar
  • Start date Start date
Click For Summary
The discussion centers on the viability of a financial market with two risky stocks, given their initial values and potential future states. The market's viability is assessed based on the absence of arbitrage opportunities, which occurs when a portfolio can be constructed that guarantees a profit without risk. Calculations for the portfolio value at time 1 across different market states indicate potential negative outcomes, suggesting the presence of arbitrage. The conversation highlights the need for a clear understanding of arbitrage opportunities in finance, which may not be familiar to all participants. Overall, the market's viability remains uncertain due to the potential for arbitrage.
WMDhamnekar
MHB
Messages
378
Reaction score
30
Consider a financial market with two risky stocks and such that values at t=0 $S^1_0= 9.52 $ currency units and $S^2_0=4.76$ currency units. The simple interest is 5% during the period [0,1].We also assume that during the period time 1, $S^1_1, S^2_1$ can take three different values depending on the market states $\omega_1, \omega_2,\omega_3$. $S^1_1(\omega_1)=20$ currency units, $S^1_1(\omega_2)=15$ currency units, $S^1_1(\omega_3)=7.5 $ currency units. $S^2_1(\omega_1)=6$ currency units, $S^2_1(\omega_2)=6$ currency units, $S^2_1(\omega_3)=4$ currency units. Is this market viable?
Answer. Viable financial merket means the market without arbitrage opportunities. Let $q_1$ and $q_2$ be the amounts invested in stock 1 and stock 2 respectively. Since the initial value of portfolio is zero, we should have $-9.52q_1$ and $-4.76q_2$ in the bank account.So our portfolio value at time 1 for all possible states are

$V_1(\omega_1)=10.004q_1+1.002q_2$$V_1(\omega_2)=5.004q_1+1.002q_2$

$V_1(\omega_3)=-2.496q_1-0.998q_2$


Now how to find out arbitrage opportunities?
 
Mathematics news on Phys.org
What is the definition of "arbitrage opportunity"? That is a finance term, not mathematics so you cannot expect people here to know that.
 
Dhamnekar Winod said:
Now how to find out arbitrage opportunities?
Contact Warren Buffett :)
 
Good morning I have been refreshing my memory about Leibniz differentiation of integrals and found some useful videos from digital-university.org on YouTube. Although the audio quality is poor and the speaker proceeds a bit slowly, the explanations and processes are clear. However, it seems that one video in the Leibniz rule series is missing. While the videos are still present on YouTube, the referring website no longer exists but is preserved on the internet archive...