No abstract

The release of sterile males is a key component of an areawide program to eradicate the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), from Guatemala and southern Mexico. The objective of our study was to assess the effects of adult diet, exposure to ginger root oil (Zingiber officinale Roscoe), and elevation on the mating competitiveness of the sterile males used in an areawide program. Sterile males were maintained on a protein-sugar (protein-fed) or a sugar-only (protein-deprived) diet and were exposed (for 4 h 1 d before testing) or not exposed to ginger root oil. In field-cage trials conducted at a high (1,500 m) and low (700 m) site, we monitored the influence of these treatments on the mating success of sterile males in competition with wild males (reared exclusively on the protein-sugar diet and without ginger root oil exposure) for wild females. Elevation and ginger root oil exposure had significant effects, with sterile males having higher mating success at the low-elevation site and ginger root oil-exposed males having greater success than ginger root oil-deprived males at both sites. Diet did not have a significant overall effect, and its influence varied with elevation (dietary protein seemed to provide an advantage at the high-elevation site but not at the low-elevation site). Possible implications of these findings for eradication programs against the Mediterranean fruit fly are discussed.

The combination of FCSRT and CERAD-WL improves the classification of MCI-AD and defines different prognostic profiles. These findings have important implications for clinical practice and the design of clinical trials.

In this paper, we use matched employer-employee data from Denmark to analyze the extent to which firms' productivity shocks are passed to workers wages. The richness of our dataset allows us to separately study continuing and non-continuing workers (switchers), to correct for selection, and to investigate how the passthrough varies across narrow population groups. Our results show a much larger degree of passthrough from firms' shocks to workers' wages than reported in previous research. On average, an increase of one standard deviation in firm-level TFP commands an increase of 3.0% in annual wages ($1500 USD for the average worker). Furthermore, we find that the effect of productivity shocks on wage growth for switchers is of larger magnitude relative to workers that stay in the same firm. Finally, we find large differences in the passthrough of productivity shocks to wages for workers of different income levels, ages, industries, and working in firms of different productivity levels. In the second part of our paper, we estimate a stochastic process of income that captures the salient features of the relation between firm-level shocks and the passthrough to workers' wages. We then embed the estimated stochastic process into a life-cycle consumption savings model with incomplete markets in order to evaluate the welfare and distributional implications of the passthrough from firm's TFP shocks to worker's wages we observe in the data. * We thank Fatih Guvenen, Sergio Ocampo, the participants at the 2nd Dale T. Mortensen Centre Conference, the SEA 2018 meetings, and the Macro-Labor Workshop at the University of Minnesota for helpful comments and discussions. First version: