278 research outputs found
Aggregation and Insurance Mortality Estimation
One goal of government health insurance programs is to improve health, yet little is known empirically about how important such government interventions can be in explaining health transitions. We analyze the child mortality effects of a major health insurance expansion in Costa Rica. In contrast to previous work in this area that has used aggregated ecological designs, we exploit census data to estimate individual-level models. Theoretical and empirical econometric results indicate that aggregation can introduce substantial upward biases in the insurance effects. Overall we find a statistically significant but quite small effect of health insurance on child mortality in Costa Rica.
Effect of Variation in Diameter and Pitch of Rivets on Compressive Strength of Panels with Z-section Stiffeners: Panels of Various Stiffener Spacings that Fail by Local Buckling
Design Charts for Flat Compression Panels Having Longitudinal Extruded Y-section Stiffeners and Comparison with Panels Having Formed Z-section Stiffeners
Effect of Variation in Diameter and Pitch of Rivets on Compressive Strength of Panels with Z-section Stiffeners : Panels that Fail by Local Buckling and Have Various Values of Width-to-thickness Ratio for the Webs of the Stiffeners
Effect of Variation in Diameter and Pitch of Rivets on Compressive Strength of Panels with Z-section Stiffeners : Panels of Various Lengths with Close Stiffener Spacing
Direct-reading Design Charts for 24S-T3 Aluminum-alloy Flat Compression Panels Having Longitudinal Formed Hat-section Stiffeners and Comparisons with Panels Having Z-section Stiffeners
Compressive Strength of 24S-T Aluminum-alloy Flat Panels with Longitudinal Formed Hat-section Stiffeners Having Four Ratios of Stiffener Thickness to Skin Thickness
Direct-reading design charts for 75S-T6 aluminum-alloy flat compression panels having longitudinal extruded Z-section stiffeners
Direct-reading design charts are presented for 75S-T6 aluminum-alloy flat compression panels having longitudinal extruded Z-section stiffeners. These charts, which cover a wide range of proportions, make possible the direct determination of the stress and all panel dimensions required to carry a given intensity of loading with a given skin thickness and effective length of panel
Data on the Compressive Strength of 75S-T6 Aluminum-Alloy Flat Panels Having Small, Thin, Widely Spaced, Longitudinal Extruded Z-Section Stiffeners
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