State tax revenue growth and volatility

Macroeconomic conditions and tax structures jointly determine the growth and volatility of state tax revenues. Since a variety of economic conditions exist among states, government policymakers should carefully anticipate and consider the possible impacts of proposed tax reform and revenue enhancements on the long-term growth and volatility of their unique tax revenue portfolios. In the short run, states generally cannot alter the volatility and growth rates of their economies. They can, however, change the composition of their tax portfolios to minimize the effects of the business cycle on their fiscal health. For this reason, state officials need to consider the natural tendencies of their economies when formulating tax policy. For example, states with volatile economies might want tax portfolios that minimize the impact of national macroeconomic trends; those with stable economies might consider adopting more aggressive tax portfolios that optimize their tax revenue growth/volatility combinations.Taxation ; State finance ; Revenue

Blade Tip Rubbing Stress Prediction

An analytical model was constructed to predict the magnitude of stresses produced by rubbing a turbine blade against its tip seal. This model used a linearized approach to the problem, after a parametric study, found that the nonlinear effects were of insignificant magnitude. The important input parameters to the model were: the arc through which rubbing occurs, the turbine rotor speed, normal force exerted on the blade, and the rubbing coefficient of friction. Since it is not possible to exactly specify some of these parameters, values were entered into the model which bracket likely values. The form of the forcing function was another variable which was impossible to specify precisely, but the assumption of a half-sine wave with a period equal to the duration of the rub was taken as a realistic assumption. The analytical model predicted resonances between harmonics of the forcing function decomposition and known harmonics of the blade. Thus, it seemed probable that blade tip rubbing could be at least a contributor to the blade-cracking phenomenon. A full-scale, full-speed test conducted on the space shuttle main engine high pressure fuel turbopump Whirligig tester was conducted at speeds between 33,000 and 28,000 RPM to confirm analytical predictions

Fortnightly Ocean Tides, Earth Rotation, and Mantle Anelasticity

The fortnightly Mf ocean tide is the largest of the long-period tides (periods between 1 week and 18.6 years), but Mf is still very small, generally 2 cm or less. All long-period tides are thought to be near equilibrium with the astronomical tidal potential, with an almost pure zonal structure. However, several lines of evidence point to Mf having a significant dynamic response to forcing. We use a combination of numerical modeling, satellite altimetry, and observations of polar motion to determine the Mf ocean tide and to place constraints on certain global properties, such as angular momentum. Polar motion provides the only constraints on Mf tidal currents. With a model of the Mf ocean tide in hand, we use it to remove the effects of the ocean from estimates of fortnightly variations in length-of-day. The latter is dominated by the earth's body tide, but a small residual allows us to place new constraints on the anelasticity of the earth's mantle. The result gives the first experimental confirmation of theoretical predictions made by Wahr and Bergen in 1986

Guiding Tourists to Their Ancestral Homes

Purpose: This paper introduces measures of the motivation of tourists who travel to their ancestral homes. A set of learning exercises is presented for students and managers to apply understanding of these motives to tourism strategies. Design/Methodology/Approach: This paper provides a brief review of the literature of heritage tourism and the special segment that travel with genealogical objectives. Survey data on motives to seek out ancestors is provided with learning exercises to link motives to tourism planning. Findings: Data on the importance of multiple motives is presented with analytical measures of their overall importance levels and of differences between U.S. and U.K. samples. Research Limitations/Implications: The motivational variables and data collection are primarily exploratory, focusing on samples that are interested in genealogy and heritage tourism. Further research could certainly be expanded to cover broader populations of tourists and genealogists. Practical Implications: By combining primary research with trade association research included in this paper students and tourism managers have the opportunity to apply research findings to tourism and hospitality decision-making to attract and satisfy tourists who have genealogical goals in their travel agendas. Originality/Value: Data based on the important and growing domain of motivational research in ancestral/genealogical related tourism has not been presented for analysis and application until now. Strength of motives and differences between nationalities of tourists presents a unique analytical opportunity in learning exercises

Personal Identity And Nostalgia For The Distant Land Of Past: Legacy Tourism

“The past is certainly a distant land and getting there is a difficult and imperfect undertaking” (Brown, Hirschman & Maclaran (2006). This paper explores motivations behind how consumers reach that “distant land.” Over 1,000 respondents of a variety of ethnic groups show very different stories and diaspora timelines, but personal identity and connection with place are always top ranked motivations for interest in ancestors. How might groups, who may suffer from a lack of identity, fit into these findings when ‘personal identity’ is the number one reason why consumers engage in genealogy and legacy tourism? Whether a group is well defined (e.g., descended from Norwegian ancestors) or not well defined, results are remarkably similar

AN INTRASEASONAL BIOECONOMIC MODEL OF PLRV NET NECROSIS

A bioeconomic model is developed as an IPM planning tool to combat PLRV net necrosis in the PNW potato industry. Environmental/biological and production processes are linked to marketing activities using discrete time control. We find that pesticides can be optimally timed to reduce applications and still protect against net necrosis.Crop Production/Industries, Environmental Economics and Policy,