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Hedge funds are more numerous , have more capital , manage more assets and derivatives , operate at higher levels of leverage and play critical roles in many major financial markets . Somewhat higher levels are recommended in Canada ( Table 4 ) . This may be one reason why Ecuadorian and Mexican tuna in the Defender 's study were found to have higher levels of mercury than tuna from other countries and points to a possible correlation between fishing practices and mercury content that warrants further study . " Chancellor Stacy has worked to bring a higher level of openness and to increase participation in the campus ' budgeting process , and I look forward to continuing the momentum that this effort has gained . Each public health organization exposes only part of its information , as metadata , to a higher level , while the real data is not exposed but available for query and retrieval . A higher level in this index points to slower deliveries which means manufacturing activity is getting stronger . The management difficulties at Hughes were becoming more apparent , not necessarily to me at my level but in the higher levels of the organization . In all these cases there is a lower level , an implementation level , that is formal in the sense of being expressed in a program , but also one or more higher level virtual machines that are quite different . Additional and higher level knowledge and skills , such as those required for equal employment opportunity specialist positions at higher grade levels , may be required when they are related to the duties and responsibilities of the collateral assignment .