It is common to assume in business cycle analysis that the capital stock is homogenous and constant in aggregate value. We explore the alternative concept that capital is heterogeneous, and whether it exhibits cyclical changes. A multiperiod model of investment implies that acquisition of specific components of capital responds to changes in relative interest rates, and we further show that the...

The understanding of the cause and treatment of premenstrual disorders is confused but it is essentially the result of cyclical ovarian activity, usually ovulation, and an effective treatment should be by suppressing ovulation. This can be done by an oral contraceptive but as these women are progestogen intolerant the symptoms may persist becoming constant rather than cyclical. Alternatively, t...

The Hodrick–Prescott (HP) filter is a commonly used tool in macroeconomics to obtain the HP trend of macroeconomic variable. In macroeconomics, difference between original series and this called ‘cyclical component’. article, we derive autocovariance function spectrum cyclical component that consists constant, linear time trend, unit root process, weakly stationary process. We show such depends...

Whenever unemployment stays high for an extended period, it is common to see analyses, statements, and rebuttals about the extent to which the high unemployment is structural, not cyclical. This essay views the Beveridge curve pattern of unemployment and vacancy rates and the related matching function as proxies for the functioning of the labor market and explores issues in that proxy relations...

Both hyperprolactinemia and depressive disorder are known manifestations of hypothyroidism. However, hyperprolactinemia with overt symptomatology per se has not been reported to precede all episodes of organic depressive disorder. We report a similar presentation.

We consider a certain combinatorial game on a digraph for two cases of the price function. For one case the game in question extends the cyclical game studied in [1,2] which, in its turn, is a generalization of the well-known problem of finding a minimum mean cycle in an edge-weighted digraph. We prove the existence of optimal uniform stationary strategies for both cases and give algorithms to ...

A European lady, aged about 30 years, had bilious vomiting on 23rd October, 1936, at about midnight. In the morning of 24th October her temperature was 99.4?F. She was sick off and on, and could not retain anything. Previous history.?She went out for a picnic on 23rd October, 1936, in the morning in a forest near a river. AVhen she came back in the evening she did not feel well. At about midnig...

Obscure gastrointestinal bleeding constitutes approximately fi ve percent of all gastrointestinal bleeding cases. Patients with this condition are often diffi cult to diagnose and frequently undergo extensive GI testing. This is no news item to all gastrointestinal specialists. The following cases highlight several different presentation scenarios, the long road to correct diagnosis, and some i...

Though fiscal policies of central governments sometimes provide modest insurance against regional income shocks, this paper shows that pro-cyclical fiscal policy among provincial governments can easily overwhelm these stabilizing effects. We examine the cyclicality of budget items among provincial governments in eight federations, showing that own-source taxes are highly pro-cyclical and contra...

Cycling ewes with lesions placed in the anterior region of medial basal hypothalamus (MBH) showed no estrous behavior, but they all had ovulations and cyclical corpora lutea at physiological terms. Participation of the anterior region of MBH in control of sexual behavior was also supported by the experiments on castrated sheep implanted with 17-beta-estradiol into the area determined previously...