The interplay between investors' demand and providers' incentives has shaped the evolution of exchange-traded funds (ETFs). While early ETFs offered diversification at low cost, later ETFs track niche portfolios and charge high fees. Strikingly, over their first five years, specialized ETFs lose...

In this paper, we study the statistical properties of the moneyness scaling transformation by Leung and Sircar (2015). This transformation adjusts the moneyness coordinate of the implied volatility smile in an attempt to remove the discrepancy between the IV smiles for levered and unlevered ETF...

This paper highlights exchange-traded funds (ETF) purchases conducted by the Bank of Japan under Quantitative and Qualitative Monetary Easing with Yield Curve Control. The policy to indirectly purchase stocks is unprecedented in terms of the scale and duration among major central banks. The...

Unconventional monetary easing conducted by the Bank of Japan (BOJ) since 2013 has contributed to the yen's depreciation, higher stock prices, and higher corporate profits. Meanwhile, the impacts on aggregate demand and inflation have not been as strong as the BOJ expected while the adverse...

A natural liquidity mismatch emerges when liquid exchange traded funds (ETFs) hold relatively illiquid assets. We provide a theory and empirical evidence showing that this liquidity mismatch can reduce market efficiency and increase the fragility of these ETFs. We focus on corporate bond ETFs...