...

Tahminim.

Imho

This refers to a situation where an individual, who has contributed into the state social insurance schemes in more than one country which have a social insurance agreement between them, has made sufficient contrinutions to be entitled to a pension independently in one of these countries notwithstanding any contributions made in the other. The following makes this clear:

http://webcache.googleusercontent.com/search?q=cache:WPwHPvO...

"SORU-18:
TÜRKİYE’DE VEYA AVUSTURYA’DA GEÇEN SİGORTALILIK SÜRELERİ YETERLİ İSE, AYRI AYRI TAM AYLIK BAĞLANABİLİR Mİ?
CEVAP-18:
Türkiye veya Avusturya’da geçen hizmetler, ülkelerin kendi mevzuatlarına göre müstakil aylık bağlamaya yeterli ise her ülke ayrı ayrı müstakil aylık bağlar.:

and the following quote shows that this term is used in official documents in English:

http://info.worldbank.org/etools/docs/library/245644/Forte20...

"The problem arises because, first, the agreement only applies in countries in which the worker has not made enough contributions to get an independent pension from that country’s social security system and, second, the accrual rate in most of the Caribbean schemes is higher during the initial years of contribution than in later periods."