As one of the important channels technology spillover, foreign direct investment (FDI) has a significant impact on regional innovation capability, which is restricted by intensity intellectual property protection. In order to explore relationship between these three factors, this paper constructs nonlinear threshold regression model based China’s provincial panel data from 2009 2018, and empiri...

purpose: to study the effects of adding intravitreal bevacizumab (avastin) to conventional laser treatment on regression of retinal neovascularization in threshold rop. methods: intravitreal injection of bevacizumab (1.25 mg) in one eye of each of three newborns with threshold rop was performed in addition to laser treatment. the other eye of each patient was treated with laser alone. changes i...

The average payment period (APP) is an important measure to monitor public sector liquidity and commercial debt sustainability. In the European Union, relevance of APP as indicator mitigate those concerns was settled by issuance a Directive on this topic. Then, considering likely relationship between financial distress (FD), paper aims assess if current historical plays relevant role in explain...

We apply the two-sector production function developed by Ram (1986) to estimate the threshold regression model for Iran, concerning the effect of government size on economic growth. Three government size indicators are used to find out the different threshold points. The results show a non-linear relationship of the Armey curve in Iran, in which the threshold effects corresponding to total gove...

Laffer curve indicates relationship between tax rate and tax income. The aim of this paper is estimating of laffer curve in Iranian economy. To do so, we have used threshold regression method. Empirical results indicate that since the tax rate is low (the threshold value is less than 0.0848) in two-regime model, tax rate and tax income have a significant positive relationship, but when the tax ...