20.11.2012 Views

recent developments in high frequency financial ... - Index of

recent developments in high frequency financial ... - Index of

recent developments in high frequency financial ... - Index of

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

282<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

CC<br />

UNEMW<br />

ISM<br />

UNEM<br />

NFP<br />

CPI<br />

DG<br />

PPI HS<br />

PI BI TB<br />

0<br />

GDP<br />

CURRENT MONTH ONE MONTH LATER TWO MONTH LATER<br />

Fig. 5 Timel<strong>in</strong>ess. Each po<strong>in</strong>t represents the number <strong>of</strong> significative coefficients <strong>in</strong> division four,<br />

the most exhaustive. The vertical l<strong>in</strong>es represent the month when they are released. Fundamentals<br />

are temporally ordered. For example, CC is released at the end <strong>of</strong> the month it is cover<strong>in</strong>g and BI<br />

and TB two months later<br />

Last, there is still an important question to answer. Some fundamentals have a<br />

def<strong>in</strong>itive effect on TY while some others have no effect whatsoever. And some<br />

<strong>of</strong> these <strong>in</strong>nocuous fundamentals are rather basic. Could we expect that GDP, the<br />

classical measure <strong>of</strong> the economy, is totally <strong>in</strong>nocuous to TY, one <strong>of</strong> the most<br />

heavily traded long-term <strong>in</strong>terest rate contracts <strong>in</strong> the world? Or that the TB, the<br />

most important <strong>in</strong>dicator <strong>of</strong> import-exports, is irrelevant to the behaviour <strong>of</strong> TY?<br />

Or that CC, a fundamental based <strong>in</strong> op<strong>in</strong>ions, has more effect that PI?<br />

The answers are <strong>in</strong> Fig. 5. It shows the total number <strong>of</strong> significant parameters (<strong>in</strong><br />

temporally accord<strong>in</strong>g to when they are released. The importance <strong>of</strong> the fundamental<br />

decreases as the time <strong>in</strong>terval between its release and the period it is cover<strong>in</strong>g<br />

<strong>in</strong>creases. This effect, called timel<strong>in</strong>ess, has been acknowledged previously by<br />

other authors (Flemm<strong>in</strong>g and Remolona 1999, and Hess 2004).<br />

Timel<strong>in</strong>ess, <strong>in</strong> this context, simply means that traders are not <strong>in</strong>terested <strong>in</strong><br />

<strong>in</strong>formation about the state <strong>of</strong> the economy at some po<strong>in</strong>t <strong>in</strong> time if it is released<br />

some months after. By contrast, the sooner the fundamental is released, the more it<br />

is perceived as important by traders and hence the greater effect it has on TY. It is<br />

the case with CC, released <strong>in</strong> the month that it is cover<strong>in</strong>g. Although CC is based<br />

RS<br />

IP<br />

D. Veredas<br />

the most exhaustive division <strong>of</strong> the bus<strong>in</strong>ess cycle) for each fundamental and is ordered<br />

on op<strong>in</strong>ions, rather than <strong>in</strong> tangible goods, workers or prices, it conveys fresh<br />

<strong>in</strong>formation about the state <strong>of</strong> the economy that is rapidly absorbed by traders.<br />

The counter example is GDP. It is released around a month and a half after the<br />

period it refers. Given that it is the tenth fundamental to be released, it does not<br />

really add <strong>in</strong>formation and hence agents do not react when it is released. Moreover,<br />

GDP is quarterly released and cont<strong>in</strong>uously revised, be<strong>in</strong>g another reason for<br />

the lack <strong>of</strong> <strong>in</strong>terest <strong>in</strong> it.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!