This paper surveys the measurement of trade costs --- what we know, and what we don't know but may usefully attempt to find out. Partial and incomplete data on direct measures of costs go together with inference on implicit costs from trade flows and prices. Total trade costs in rich countries...

The empirical evidence on rational inattention lags far behind the theoretical developments: micro evidence on the most immediate consequence of observation costs − the infrequent observation of state variables − is not available in standard datasets. We contribute to filling the gap with...

We examine how liquidity and asset prices are affected by the following market imperfections: asymmetric information, participation costs, transaction costs, leverage constraints, non-competitive behavior and search. Our model has three periods: agents are identical in the first, become...

Recurrent intervals of inattention to the stock market are optimal if consumers incur a utility cost to observe asset values. When consumers observe the value of their wealth, they decide whether to transfer funds between a transactions account from which consumption must be financed and an...

The expansion of markets and industrialization greatly increased the benefits of specialization in the U.S. economy. However, since the benefits of specialization can only be realized through trade, specialization significantly increases the volume of market transactions in the economy. The...

This is an invited chapter for the forthcoming Volume 4 of the Handbook of Industrial Organization. We focus on markets with frictions, such as transaction costs, asymmetric information, search and matching frictions. We discuss how such frictions affect allocations, favor the emergence of...

We show that mutual funds worldwide provide substantial international exposure through their domestic holdings of multinationals. An average domestic fund's international exposure increases by 32 percentage points when we consider international corporate diversification. We find that funds with...

This study grounds the establishment of EMU and the euro in the context of the history of international monetary cooperation and of monetary unions, above all in the U.S., Germany and Italy. The purpose of national monetary unions was to reduce transactions costs of multiple currencies and...

As Africa's role on the global stage is rising, so does the need to understand the shadow of history on the continent's economy and polity. We discuss recent works that shed light on Africa's colonial and precolonial legacies. The emerging corpus is remarkably interdisciplinary. Archives,...