This paper exploits a new source of variation in Head Start funding to identify the program’s effects on health and schooling. In 1965 the Office of Economic Opportunity (OEO) provided technical assistance to the 300 poorest counties to develop Head Start proposals. The result was a large and lasting discontinuity in Head Start funding rates at the OEO cutoff for grant-writing assistance. We find evidence of a large drop at the OEO cutoff in mortality rates for children from causes that could be affected by Head Start, as well as suggestive evidence for a positive effect on educational attainment.

), essentially the equality of the marginal rates of transformation and substitution between the target variables. Targeting rules allow the use of judgment and extramodel information, are more robust and easier to verify than optimal instrument rules, and they can nevertheless bring the economy close

Abstract — This paper addresses the management of drinking water networks (DWNs) regarding a multi-objective cost function by means of economically-oriented model predictive control (EMPC) strategies. Specifically, assuming the water demand and the energy price as periodically time-varying signals

This document contains detailed information on power considerations, DC/AC electrical characteristics, and AC timing specifications for the MPC8250 PowerQUICC II™ communications processor. The following topics are addressed: The MPC8250 is available in two packages—the standard TBGA package (480

In this review article, we discuss the current status of particle dark matter, including experimental evidence and theoretical motivations. We discuss a wide array of candidates for particle dark matter, but focus on neutralinos in models of supersymmetry and Kaluza-Klein dark matter in models of universal extra dimensions. We devote much of our attention to direct and indirect detection techniques, the constraints placed by these

This hardware specification contains detailed information on power considerations, DC/AC electrical characteristics, and AC timing specifications for the MPC860 family. To locate published errata or updates for this document, see the MPC860 product summary page on the website listed on the back

, instead of addressing the problem by implementing sub-optimal MPC schemes, the closed-loop performance and the control algorithm power consumption are minimized in a joint cost function, allowing us to keep the controller power efficiency closer to an analog approach while maintaining closed-loop op-timality

, memory, and PCI interfaces; providing controls for off-chip secondary cache and memory systems; assuring PowerPC reference platform specification compatibility and system-configuration flexibility; reducing silicon and packaging costs; and optimizing performance. Critical MPC105 design features include

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This document provides an overview of the MPC8308 features and its hardware specifications, including a block diagram showing the major functional components. The MPC8308 is a cost-effective, low-power, highly integrated host processor. The MPC8308 extends the PowerQUICC family, adding higher CPU