This paper examines the effects and origins of balanced skills among nascent entrepreneurs. In a first step we extend Lazear’s jack-of-all-trades theory to formally model performance effects of balanced skills. In a second step we investigate potential sources of balanced skills related to the...

In many product categories of durable goods such as TV, PC, and DVD player, the largest component of sales is generated by consumers replacing existing units. Aggregate sales models proposed by diffusion of innovation researchers for the replacement component of sales have incorporated several...

This paper empirically examines models of replacement sales for six electronic consumer durables ? TVs, VCRs, DVD players, Digital Cameras, personal and notebook computers ? using data from a large survey of 8077 German households. A new replacement model is developed that fits the empirical...