This paper develops a subordinated stochastic process model for the asset price, where the directing process is identified as information. Motivated by recent empirical and theoretical work, we make use of the under-used market statistic of transaction count as a suitable proxy for the...

Building models for high dimensional portfolios is important in risk management and asset allocation. Here we propose a novel and fast way of estimating models of time-varying covariances that overcome an undiagnosed incidental parameter problem which has troubled existing methods when applied...

In this paper we provide a systematic study of the robustness of probability limits and central limit theory for realised multipower variation when we add finite activity and infinite activity jump processes to an underlying Brownian semimartingale.

IPO initial returns reached astronomical levels during 1999-2000. We show that the regime shift in initial returns and other elements of pricing behavior can be at least partially accounted for by a variety of marked changes in pre-IPO ownership structure and insider selling behavior over the...

In this paper we show that profitable market manipulation via trade is possible if prices perform an allocational role. If market prices affect the real value of an asset (e.g. because they contain information relevant to a firm's investment decisions), a potentially informed speculator may wish...

This paper provides an empirical analysis of the financial structure of large recent buyouts. We collect detailed information of the financings of 153 large buyouts (averaging over $1 billion in enterprise value). We document the manner in which these important transactions are financed. Buyout...

In this paper we provide an asymptotic analysis of generalised bipower measures of the variation of price processes in financial economics. These measures encompass the usual quadratic variation, power variation and bipower variations which have been highlighted in recent years in financial...

A recent report by Paul Myners for the UK Treasury has provided a wealth of information on the structure and operation of the pension fund industry in the UK. The report points to serious deficiencies in the governance of pension funds. These concerns are of considerable significance in their...

The 1989 Brady Plan, named after the former US Treasury Secretary Nicholas Brady, was the restructuring and reduction of several emerging countries' external debt into bonds with US Treasury bonds as collateral. So far no country has ever defaulted payments, yet the market value of these bonds...