This paper examines entrepreneurial intentions in the context of heterogeneity on both sides of the individual-opportunity nexus. One aspect of individual heterogeneity that has been neglected in this context is the individual’s motivation to supply work effort. Drawing from the organisational behavior and careers literatures we consider the attitudinal drivers of the individual’s decision to work more or less hard as potential antecedents of the intention to become an entrepreneur. On the other side of the individual-opportunity nexus, heterogeneity of entrepreneurial opportunity is characterized as subsistence, lifestyle, speculative and growth opportunity types. We argue that work effort requirements may be higher in speculative or high-growth ventures than in subsistence or lifestyle ventures, and thus different types of ventures might better suit the work preferences of different individuals. We suggest a series of propositions for empirically testing whether the perceived desirability of particular types of new ventures varies according to the worker type contemplating entrepreneurship and whether different worker types are more or less likely to start particular types of new ventures.