Arbitrage and parity

Hi all,

Please help me on this

As per my understanding Arbitrage means riskless profit.

There are different parity which reach at different interconnected conclusion.

I am not able to understand how a condition of arbitage to be hold and not to be hold impact these parity?

Thanks

Can you give an example of what you mean?

Hi Bill,

Like for an eg in Kaplan there is a statement - no true arbitrage available to force relative PPP to hold.

I came across several time free flow of fund and arbitrage plays a role in FX market.

I am not able to connect story how an arbitrage to be hold and not to be hold going to make any difference to the conculsion made by these parities.

For eg : as per fisher international relation the % S = expected inflation differential between the two countries .

Lets assume if in this case arbitrage hold then till the time this relationship does not hold we have a chance of making arbitrage profit latter on coz of efficient market this relation has to be hold.

I hope I am able to explain what is gap in my understanding .

Thanks