This article tests for the effects of a change in competitive balance on attendance at Major League Baseball games using game-level attendance data for the 2000-2002 seasons. Employing the difference between the winning percentages of the home and visiting teams as a measure of competitive balance, the authors find (a) the effects of a change in competitive balance on attendance are not symmetric, (b) the effects of a change in competitive balance increase as a team falls further behind the divisional leader, and (c) the effects of a change in competitive balance decline throughout the season if the home team has a better record than the visiting team but increase if the home team has a worse record than the visiting team.
Recent relinements in the theory of the firm suggest that organization form may be sensitive not only to the rlegree to which assets are specific to a transaction but afso to the type of capital employed. This paper reports evidence regarding the relative influence of transaction-specilic investments in physical and human capital on the pattern of vertical integration using new data obtained directly from U.S. auto manufacturers. The results support the proposition that investments in specialized technical know-how have a stronger infiuence than those in specialized physical capital on the decision to integrate production within the firm.
In this article, the authors investigate the process of racial integration in Major League Baseball, critiquing the empirical approach used by Goff, McCormick, and Tollison (GMT; 2002). GMT claim to find evidence suggesting that winners integrated fastest. This study shows that when their empirical model is properly specified, the results do not support that conclusion. Several alternative tests are employed and the evidence is inconclusive—if anything, there is some weak support for the hypothesis that losers integrate faster.
Arrowhead cursors used within graphic-user interfaces include implicit directional cues that may not be compatible with desired axis of motion. In addition, arrowhead cursors may not afford the best cues for location, and such effects may be exacerbated when there is a greater need for precise cursor placement. To address the impact of the cursor's orientation on its positioning, 12 participants were required to move cursors (pointing arrows) leftward or rightward to targets (small, medium, or large) on a computer screen. Response latencies were influenced by compatibilities between movement direction and cursor shape but only when moderate levels of precision were required. Rightward movements were slower and less accurate, and movements were slower and less efficient when arrows pointed in compatible directions. Implicit directional cues only elicited compatibility effects with moderate precision requirements. Arrowhead cursors compatible with direction of motion led to slower cursor movements and less efficient cursor trajectories. Where response initiation is important, compatible arrowheads are beneficial, but if speed of cursor placement is an issue, an orientation neutral cursor with area effect might be preferable, or a more direct interface (e.g., touch-sensitive screen) might be more appropriate.
To investigate the characteristics of a computer touchpad as a pointing device, 14 participants used their right hand to manipulate the touchpad on a laptop computer. They were required to move a cursor over different distances (7.5 cm, 15 cm) from a home location to targets of different diameters (8 mm, 16 mm), situated to the upper left, middle, or right of a computer screen. A kinematic analysis of movement onsets and cursor trajectories indicated the nature of inefficiencies of the touchpad compared with other devices, primarily excessive submovements. Upper leftward movements were poorer, which can be explained by asymmetries in the finger-wrist system. This result implies that screen accessibility can vary as a function of users' interaction with cursor controllers and that the default placements of key icons might need to vary as a consequence.
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