One fundamental property that pairs trading requires is the instruments have to be cointegrated in order to ensure a connection between two FX currency pairs. Definition (Cointegration): An n-dimensional time series yt is cointegrated if the linear combination 1y1t + â¦ + n Ynt of the component variables is stationary.
Please note that after 31st December 2011, all U.S. nationals expect to visit Sri Lanka have to apply visa online through ETA (Electronic Travel Authorization) system. A processing fee of $30 will be charged from the applicants. The passport should be valid for at least six months from the date the visa is to be issued. 2  Business visa applications should accompany a letter from the sponsoring agency in Sri Lanka, a letter from the employing company in US and a copy of onward â return air ticket and travel itinerary.
As of January 1st, 2012, the government of Sri Lanka has introduced a new electronic visa requirement, called an ETA. Tourists will need to apply for a Sri Lanka ETA on-line before traveling to Sri Lanka.The process is entirely electronic.ow it Works. The Sri Lanka ETA is issued electronically; it is not necessary to submit original passport or other documents for processing. Simply complete and submit Travisa's online request form and Travisa will lodge your ETA application to the Sri Lanka Department of Immigration and Emigration on your behalf.