Abstract: | During the first decades of the twentieth century, Italian economist Francesco Coletti (1866–1940) was recognised as an authority on emigration and agricultural economics. We intend to focus here on Coletti's early career to understand how he rapidly managed to secure an enviable reputation. We examine Coletti's interventions on economic semiology and measurement of national wealth. We then move on to a series of theoretical debates (notably on Marx's theory of value) to which Coletti made significant contributions. Finally, we survey Coletti's fieldwork in agriculture and emigration, topics that allowed for connecting theoretical issues, methodological constraints, and empirical data. |