The first steps toward bilingual language acquisition have already begun at birth. When tested on their preference for English versus Tagalog, newborns whose mothers spoke only English during pregnancy showed a robust preference for English. In contrast, newborns whose mothers spoke both English and Tagalog regularly during pregnancy showed equal preference for both languages. A group of newborns whose mothers had spoken both Chinese and English showed an intermediate pattern of preference for Tagalog over English. Preference for two languages does not suggest confusion between them, however. Study 2 showed that both English monolingual newborns and Tagalog-English bilingual newborns could discriminate English from Tagalog. The same perceptual and learning mechanisms that support acquisition in a monolingual environment thus also naturally support bilingual acquisition.

The development of native language phonetic representations in bilingual infants was compared to that of monolingual infants. Infants (ages 6–8, 10–12, and 14–20 months) from English–French or English-only environments were tested on their ability to discriminate a French and an English voice onset time distinction. Although 6- to 8-month-olds responded similarly irrespective of language environment, by 10–12 months both groups of infants displayed language-specific perceptual abilities: the monolinguals demonstrated realignment to the native English boundary whereas the bilinguals began discriminating both native boundaries. This suggests that infants exposed to two languages from birth are equipped to phonetically process each as a native language and the development of phonetic representation is neither delayed nor compromised by additional languages.

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This case study examines the consequences of important education decentralisation reforms that took place in Sweden in the early 1990s. The sudden shift away from a traditionally centralised education system towards a decentralised one meant that municipalities had to quickly accommodate new responsibilities. Difficulties related to this shift were noticed early on and then confirmed by international surveys, in particular PISA, which revealed that student performance was deteriorating while the gap increased between and top-and bottom-performers. Key elements to this include the fact that decentralisation took place without enough support from the central authorities, municipalities (particularly smaller ones) lacked local capacity to manage their new responsibilities, and as a result the reform has resulted in a mismatch between official responsibilities and the actual powers of the various stakeholders. The central government, steering education at arm's length, has few tools to incentivise compliance with national goals. At the municipal level, financial resources are often allocated based on tradition and local politics rather than actual needs. This is in part due to misuse of available data and of expert knowledge by decision-makers. The case study also provides a series of recommendations for improvement.