Šiame darbe tikrinama efektyviosios rinkos hipotezė ir ieškomas ARIMA modelis pasirinktai akcijų kainų eilutei. Pakankama akcijų rinkos efektyvumo sąlyga yra atsitiktinio klaidžiojimo hipotezės galiojimas. Dėl to, naudojant autokoreliacijos koeficientų, Box – Pierce Q –...

This paper seeks to identify why stock prices behave the way they do. We find that conventional economic theories are unable to explain why there are so many long bull and bear markets. We suggest that it is investor expectations of future market movements, based on their views of other...

In the aftermath of the global financial crisis, the issue of how best to identify speculative asset bubbles (in real-time) remains in flux. This owes to the difficulty of disentangling irrational investor exuberance from the rational response to lower risk based on price behavior alone. In...

In recent years, portfolio flows to emerging markets have become increasingly large and volatile. Using weekly portfolio fund flows data, the paper finds that their short-run dynamics are driven mostly by global “push†factors. To what extent do these cross-border flows and global risk...

The appropriate design of monetary policy in integrated financial markets is one of the most challenging areas for central banks. One hot topic is whether the rise in liquidity in recent years has contributed to the formation of price bubbles in asset markets. If strong linkages exist, the...

This paper presents a simple new method for estimating the size of ‘wealth effects?on aggregate consumption. The method exploits the well-documented sluggishness of consumption growth (often interpreted as ‘habits?in the asset pricing literature) to distinguish between short-run and long-run...

This paper estimates standard and extended Taylor rules for core countries in the euro area, namely France, Germany and Italy, as well as for the ECB. Forward, backward and forecast-based rules are estimated for a variety of samples since the late 1970s. We are particularly interested in the...