We analyze the implications of financial openness to macroeconomic volatility in a small open economy. Major macroeconomic aggregates show non-monotonic volatility patterns with respect to the degree of financial openness in the model without domestic financial frictions. The introduction of...

The share of market making conducted by high-frequency trading (HFT) firms has been rising steadily. A distinguishing feature of HFTs is that they trade intraday, ending the day flat. To shed light on the economics of HFTs, and in a departure from existing market-making theories, we model an HFT...