Few concepts in the history of twentieth-century history proved as important as economic growth. Scholars such as Charles Maier, Robert Collins, and Timothy Mitchell have analysed how the notion that an entity called ‘the economy’ (defined by metrics such as Gross National Product, or GNP) could be made to grow came to define economic thought and policy worldwide. Yet there has been far less attention paid to the fact that neither growth nor GNP went without challenge during their emergence and global diffusion. This article focuses on one set of growth critics: those who advocated for ‘social indicators’ in international development policy during the 1960s and 1970s. It advances three overlapping arguments: that advocates for social indicators harkened back to early twentieth-century transnational efforts to make workers’ ‘standard of living’ the primary statistical framework for policy-makers; that, while supporters of social indicators expressed frustration with technocratic governance, their reform efforts nevertheless represented technocratic critiques of modernity; and finally, that one of the major reform efforts, Morris David Morris’s advocacy on behalf of the ‘Physical Quality of Life Index’ (PQLI), as an alternative measure of national wellbeing, ultimately struggled to challenge the GNP growth paradigm, and yet proved influential in spawning subsequent research into new measures and approaches to development.