Empirically, the project examines three key fields that are particularly relevant to post-financial crisis developments: new popular investing, flexible work, and infrastructural planning. Through ethnographic methods, it explores the lifeworlds, strategies, narratives, and moral perceptions of individuals and groups engaged in these fields. Cultures of Speculation illustrates that these new speculative practices cannot be understood solely in economic terms; rather, they are both a product and a driver of broader social transformation. Additionally, it investigates how speculation works as a mode of governance in contemporary society and economy. It analyzes how affective dimensions and power relations, shaped by gender, class, and ethnic inequalities, intersect with economic practices, further influencing market practices and societal structures.