We present a general framework for modelling the dynamics of limit order books, built on the combination of two modelling ingredients: the order flow, modelled as a general spatial point process, and market clearing, modelled via a deterministic ‘mass transport’ operator acting on...

The estimation of the PIN model and its extensions has posed significant challenges due to various computational problems. To address these issues, we propose a novel estimation method called the Expectation-Conditional Maximization (ECM) algorithm, which can serve as an alternative to existing...

This study suggests a novel approach for decomposing an options order imbalance based on trading motives using put-call parity. The options order imbalance is separated into two components: one that contains arbitrage trading and one that does not. Intuitively, the proportion of the former...

We present a full (to my opinion) set of models for big data in nance, including HFT (e.g., LOB). All these models were introduced, pro-posed, and then studied after investigating many HFT data (see [12, 13, 7, 4]), which supported and justi ed our models. For quantitative and comparative...

Using a mix of survey and secondary datasets on Africa, we document that banks and non-bank financial institutions account for more than 85 percent of corporate bonds issued in Africa during 2000—2020, with a market capitalization of over 80 percent of these bonds. Africa’s markets have...

We propose a new approach to modeling informed order flows. Our approach generalizes arbitrage pricing to incorporate both information and demand effects, giving rise to a new quadratic factor model of price impacts. Our approach offers two fresh insights into the economics of informed trading....

We propose a framework to study optimal trading policies in a one-tick pro-rata limit order book, as typically arises in short-term interest rate futures contracts. The high-frequency trader chooses to post either market orders or limit orders, which are represented respectively by impulse...