Using demand shifts induced by demographics, we evaluate capital budgeting and market timing. Capital budgeting implies that industries anticipating positive demand shifts in the near future should issue more equity to finance greater capacity. To the extent that demand shifts in the distant future are not incorporated into equity prices, market timing implies that industries anticipating positive shifts in the distant future should issue less equity due to undervaluation. The evidence supports both theories: new listings and equity issuance respond positively to demand shifts during the next 5 years and negatively to demand shifts further in the future.

Does limited attention among investors affect stock returns? We compare the response to earnings announcements on Friday, when investor inattention is more likely, to the response on other weekdays. If inattention influences stock prices, we should observe less immediate response and more drift for Friday announcements. Indeed, Friday announcements have a 15% lower immediate response and a 70% higher delayed response. A portfolio investing in differential Friday drift earns substantial abnormal returns. In addition, trading volume is 8% lower around Friday announcements. These findings support explanations of post‐earnings announcement drift based on underreaction to information caused by limited attention.