# Valuing TRYUSD currency swap on Bloomberg

Usually a leg in a swap is discounted using the corresponding OIS curve if the deal is collateralized and if collateral is posted in a different currency teh discounting happens with the corresponding CSA collateral curve. But for TRY I can see that both OIS and CSA curves are missing. I have seen that the TRY vs USD Basis curve has been used. Why is this curve being used specifically? Also I can see that TRY vs USD 3M curve is also present but the TRS vs USD Basis has been used to discount this leg.

Why did you not ask the help desk? F1 F1.