"expansive system" is a correct and usable phrase in written English.
It can be used to describe something that is comprehensive, wide-ranging, or extensive in nature. Example: The company's new expansive system of employee benefits is aimed at improving work-life balance and increasing job satisfaction.
These are masks for their fear that a more expansive system will bring more Democratic voters to the polls.
The proposal stopped short of the expansive system sought by President Obama and many gun-control advocates.
The ad highlights Mr. Romney's support for the Keystone Pipeline, an expansive system of pipes that would deliver oil from Canada to the Gulf of Mexico.
During the campaign, Mr. Bush called for deploying a more expansive system than the limited one President Clinton considered but ultimately deferred earlier this year.
House Democrats are poised to endorse an expansive system to publicly finance congressional campaigns, a forceful statement against the influence of wealthy donors in politics.
If the US is to reap the benefits of early education, we need an expansive system of ECE services that extends over time and effectively connects the resources of business, government, communities, and families.
But even expansive systems eventually introduce selection devices for the most advanced and prestigious levels and types of education.
Out of the common school movement in the 1830s and 1840s, states across the country developed expansive systems of free, tax-funded public schools.
The company is working on more expansive systems in Shanghai, in preparation for the 2010 World Expo there — in addition to government and business security systems in Guangzhou, Shenzhen, Nanjing, Changsha, Tianjin, Kunming and Xi'an.
In combination, then, population size decline suggests decreasing variability due to genetic drift while reactionary processes such as long-range migration and expansive systems of mate exchange suggest increasing variability due to gene flow.
Because of the breadth of subject matter within its competence and its capacity to reach deeply into national legal systems, the EU has successfully created an expansive legal system in which all of its member states participate.
