Mizrahi Jews and Mizrahim is increasingly common in Israel and by the late 1990s 28% of all Israeli children had multi-ethnic parents (up from 14% in the 1950s). It has been claimed that intermarriage does not tend to decrease ethnic differences in socio-economic status, however that does not apply to the children of inter-ethnic marriages. Although social integration is constantly improving, disparities persist. A study conducted by the Israeli Central Bureau of Statistics (ICBS), Mizrahi Jews are less likely to pursue academic studies than Ashkenazi Jews. Israeli-born Ashkenazim are up to twice more likely to study in a university than Israeli-born Mizrahim.
Ashkenazi Hebrew from Spain in 1492 (or before) the Sephardic pronunciation of the vowels became standard in all these countries, ironing out any differences that previously existed. This makes it harder to adjudicate between the different theories on the relationship between today's pronunciation systems and those of ancient times. Leopold Zunz believed that the Ashkenazi pronunciation was derived from that of Palestine in Geonic times (7th–11th centuries CE), while the Sephardi pronunciation was derived from that of Babylonia. This theory was supported by the fact that, in some respects, Ashkenazi Hebrew resembles the western dialect of Syriac while Sephardi Hebrew resembles the