The government budget constraint ties the market value of government debt to the expected present discounted value of fiscal surpluses. Bond investors fail to impose this no-arbitrage restriction in the U.S., resulting in a government debt valuation puzzle. Both cyclical and longrun dynamics of tax revenues and government spending make the surplus claim risky. In a realistic asset pricing model, this risk in surpluses creates a wedge of 2.5 times GDP between the value of debt and that of the surplus claim, and implies an expected return on the debt portfolio that far exceeds the observed yield on Treasuries.

Firms finance intangible investment through employee compensation contracts. In a dynamic model in which intangible capital is embodied in a firm's employees, we analyze the firm's optimal decisions of intangible investment, employee compensation contracts, and financial leverage. Employee financing is achieved by delaying wage payments in the form of future claims. We document that intangible capital investment is highly correlated with employee financing, but not with debt issuance or regular equity refinancing. In the quantitative analysis, we show that this new channel of employee financing can explain the cross-industry differences in leverage and financing patterns.

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Firms finance intangible investment through employee compensation contracts. In a dynamic model in which intangible capital is embodied in a firm's employees, we analyze the firm's optimal decisions of intangible investment, employee compensation contracts, and financial leverage. Employee financing is achieved by delaying wage payments in the form of future claims. We document that intangible capital investment is highly correlated with employee financing, but not with debt issuance or regular equity refinancing. In the quantitative analysis, we show that this new channel of employee financing can explain the cross-industry differences in leverage and financing patterns.

Although the aggregate capital share of U.S. firms has increased, the firm-level capital share of a typical U.S. firm has decreased. This divergence is due to mega-firms that now produce a larger output share without a proportionate increase in labor compensation. We develop a model in which firms insure workers against firm-specific shocks, where more productive firms allocate more rents to shareholders, while less productive firms endogenously exit. Increasing firm-level risk delays exit and increases the measure of mega-firms, which raises the aggregate capital share while lowering the average firm's capital share. An increase in the level of rents quantitatively magnifies this effect. We present evidence supporting this mechanism.