Determination of Factors Affecting Tax Revenues

Time Series Modelling of Daily Tax Revenues

We provide a detailed discussion of the time series modelling of daily tax revenues. The main feature of daily tax revenue series is the pattern within calendar months. Standard seasonal time series techniques cannot be used since the number of banking days per calendar month varies and because there are two levels of seasonality: between months and within months. We start the analysis with a p...

Disparities Among Cities’ Sales Tax Revenues

Under what is known as the situs rule, a 1 percent locally levied sales tax is collected by the state but returned to the jurisdiction where the sale occurred. Thus, the situs rule gives cities an incentive to promote the location of retail businesses within their boundaries—an incentive that does not exist for residential or industrial development. Although sales taxes are a modest share of to...

The tax gap: America's underreported revenues

Investigating the Impact of Tax Revenues (Tax Expenditures) on Iran's Economic Growth

Taxes constitute the main sources of government revenue on one hand and, on the other hand, are one of the most important financial policy tools and can play a key role in economic growth and development. Therefore, it is important to identify tax payment potential as a step towards achieving these revenues. However, part of the tax revenue cannot be collected for legal and illegal reasons. In ...

Factors affecting the determination of cerebrovascular reactivity

BACKGROUND AND PURPOSE Cerebrovascular reactivity (CVR), measures the ability of the cerebrovasculature to respond to vasoactive stimuli such as CO2. CVR is often expressed as the ratio of cerebral blood flow change to CO2 change. We examine several factors affecting this measurement: blood pressure, stimulus pattern, response analysis and subject position. METHODS Step and ramp increases in ...