This paper examines the experience of fourteen developed countries for which there are about thirty years of quarterly inflation-adjusted housing price data. Price dynamics is modeled as a combination of a country-specific component and a cyclical component. The cyclical component is a two-state Markov switching process with parameters common to all countries. We find that the latent state vari...

The light-induced increases of the effective fluorescence yield in Chlorella are too slow to be primary processes in photosynthesis. The fast transient state (risetime 25 nsec, limited to the first flash) is attributed to a priming reaction for the photosystem that makes oxygen. The slower cyclical process (risetime 3 musec, decay time 200 musec and 2 msec) is attributed to the dark reactions t...

I study the cyclical behavior of an equilibrium search model with endogenous job creation and destruction, with focus on the model’s failure to match the observed cyclical volatility of unemployment. Job creation in the model is influenced by wages in new matches. I summarize microeconometric evidence on wages in new matches and show that the key model elasticities are consistent with the evide...

Recent work by Robert Shimer (2005) has stressed the difficulties of the standard Dale T. Mortensen and Christopher A. Pissarides (1994) model in explaining the cyclical movement of unemployment. As potential mechanism behind observed employment dynamics, several papers (e.g., Shimer 2004, Robert Hall 2005, and Hall and Paul Milgrom 2008) have suggested rigidities in the wage setting process th...

Can discrete, single-shot movements and continuous, cyclical movements be reduced to a single concept? In the classical, computational approach to human motor behaviour, cyclical aimed movement has general19 been considered to derive from discrete primitives through a concatenation mechanism. Much importance, accordingly, has been attached to discrete-movement paradigms and to techniques allowi...

Mammalian spermatogenesis is a highly regulated system dedicated to the continuous production of spermatozoa from spermatogonial stem cells, and the process largely depends on microenvironments created by Sertoli cells, unique somatic cells that reside within a seminiferous tubule. Spermatogenesis progresses with a cyclical program known as the "seminiferous epithelial cycle," which is accompan...

A growing literature documents cyclical movements in mortality and health. We examine this pattern more closely and attempt to identify the mechanisms behind it. Specifically, we distinguish between mechanisms that rely on fluctuations in own employment or time use and those involving factors that are external to the individual. Our investigation suggests that changes in individuals’ own behavi...

Volutrauma and atelectrauma have been proposed as mechanisms of ventilator-associated lung injury, but few studies have compared their relative importance in mediating lung injury. The objective of our study was to compare the injury produced by stretch (volutrauma) vs. cyclical recruitment (atelectrauma) after surfactant depletion. In saline-lavaged rabbits, we used high tidal volume, low resp...

Because little is known about spontaneous changes in cerebral blood flow in neonates, a newly developed online Doppler technique was used to insonate continuously the middle cerebral arteries of a group of sick (n = 20) and full term healthy (n = 16) newborn infants for a period of one minute. A total of 290 recordings of epochs each lasting one minute were analysed, and pronounced regular, cyc...

This paper analyzes the welfare costs of business cycles when workers face uninsurable job displacement risk that has a cyclical component. Using a simple general equilibrium model with incomplete markets, this paper shows the following result: for sufficiently high degree of risk aversion (at least one), cyclical variations in the long-term earnings losses of displaced workers can generate arb...