We develop a macroeconomic framework in which firms are large and have market power with respect to both products and labor. Each firm maximizes a share-weighted average of shareholder utilities, which makes the equilibrium independent of price normalization. In a one-sector economy, if returns...

We theoretically analyze how index investing affects financial markets using a dynamic exchange economy with heterogeneous investors and two Lucas trees. We identify two effects of indexing: lockstep trading of stocks increases market volatility and stock return correlations but reduction in...

Employee share ownership is growing increasingly important. This paper studies employee share ownership in an economy with one monopoly union for each firm. We modify an implicit contract model by adding dividend income to the usual wage income. Union members differ in exogenous stock endowments...

The paper analyses the influence of trade policies on the investment decisions of a representative individual. In particular, the increased uncertainty of future income is considered in the investment behaviour of individuals. The optimal portfolio-decision of a representative working individual...