In my dissertation, I study the interplay between innovation and economic growth with an emphasis on the misallocation of ideas and talent. The first chapter focuses on the allocation of the innovations themselves, considering the optimal allocation of ideas across firms, and how it can be achieved via a market for ideas. This is done by first creating an operational measure of technological propinquity between firms and inventions. Using this empirical measure, new stylized facts are documented which suggest that ideas may indeed be initially misallocated across firms, but the market for patents can alleviate the initial misallocation. A quantitative model is built to perform some thought experiments which suggest that the economic growth ...