Social liberalism

Social liberalism also known as left liberalism in Germany, modern liberalism in the United States and new liberalism in the United Kingdom, is a political philosophy and variety of liberalism that endorses a regulated market economy and the expansion of civil and political rights. Under social liberalism, the common good is viewed as harmonious with the freedom of the individual. 
Social liberalism is different from classical liberalism: it thinks the state should address economic and social issues. Examples of problems the state might work on include unemployment, health care, and education. For example, there was no state support for general education in Britain before about 1870. Support for poor people came from private charities, and the church.
A commitment to a fair distribution of wealth and power led gradually (over about a century) to support public services as ways of fairly distributing wealth. Democracy improved by increasing the franchise (the right to vote) to all adults. Some countries which did not have democracy now do have it.
According to social liberalism, the government should also expand civil rights. Under social liberalism, the good of the community is viewed as harmonious with the freedom of the individual. Many parts of the capitalist world have used social liberal policies, especially after World War II.
John Rawls's published a book called "A Theory of Justice" in 1971, he suggested that ‘new liberalism’ is focused upon developing a theory of social justice. This idea of liberalism leads to issues of sharing, equality, and fairness in social and political circumstances. It is controversial because it attacks neoliberalism.
Social liberal ideas and parties tend to be considered centrist or centre-left.