949 resultados para Area with a shortage of doctors
Resumo:
Letter (typed) from the H.H. Warner Co. to S.D. Woodruff which was enclosed with a payment of $2,500.00 for the shooting share transferred to Mr. Warner. The letter also requests that Mr. Woodruff send a note explaining the general customs of the club, May 21, 1886.
Resumo:
Post card with a notice of freight arrival addressed to S.D. Woodruff from the Great Western Railway for castings, a keg and grates, Aug.11, [1876].
Resumo:
Letter (2 letters contained in one with a total of 2 pages) addressed to Henry Nelles. The first part is from Gilles Moffatt and he says that there is a balance of 277 pounds and 13 shillings in their favour. This is dated Jan. 10, 1831. The second part is addressed to Henry Nelles from R. Gillespie and it says that he intends to go to London district before paying Mr. Nelles a visit in Grimsby. The second page of this letter is stained and missing a section. Text is slightly affected, Jan. 29, 1831.
Resumo:
UANL
Resumo:
UANL
Resumo:
UANL
Resumo:
UANL
Resumo:
UANL
Resumo:
UANL
Resumo:
UANL
Resumo:
UANL
Resumo:
This paper proposes a model of natural-resource exploitation when private ownership requires costly enforcement activities. For a given wage rate, it is shown how enforcement costs can increase with labor's average productivity on a resource site. As a result, it is never optimal for the site owner to produce at the point where marginal productivity equals the wage rate. It may even be optimal to exploit at a point exhibiting negative marginal returns. An important parameter in the analysis is the prevailing wage rate. When wages are low, further decreases in the wage rates can reduce the returns from resource exploitation. At sufficiently low wages, positive returns can be rendered impossible to achieve and the site is abandoned to a free-access exploitation. The analysis provides some clues as to why property rights may be more difficult to delineate in less developed countries. It proposes a different framework from which to address normative issues such as the desirability of free trade with endogenous enforcement costs, the optimality of private decisions to enforce property rights, the effect of income distribution on property rights enforceability, etc.
Resumo:
Conditional heteroskedasticity is an important feature of many macroeconomic and financial time series. Standard residual-based bootstrap procedures for dynamic regression models treat the regression error as i.i.d. These procedures are invalid in the presence of conditional heteroskedasticity. We establish the asymptotic validity of three easy-to-implement alternative bootstrap proposals for stationary autoregressive processes with m.d.s. errors subject to possible conditional heteroskedasticity of unknown form. These proposals are the fixed-design wild bootstrap, the recursive-design wild bootstrap and the pairwise bootstrap. In a simulation study all three procedures tend to be more accurate in small samples than the conventional large-sample approximation based on robust standard errors. In contrast, standard residual-based bootstrap methods for models with i.i.d. errors may be very inaccurate if the i.i.d. assumption is violated. We conclude that in many empirical applications the proposed robust bootstrap procedures should routinely replace conventional bootstrap procedures for autoregressions based on the i.i.d. error assumption.