Whether money supply actually is endogenous or exogenous is always an endless debatable problem in the financial field.
货币供给究竟是内生的还是外生的,这是货币金融领域始终争论不休的问题。
Meanwhile four exogenous variables including benefit group influence power,substitute energy,transaction price,price expectation and carbon tax and their functional mechanism on the firm demand of carbon emission right are analyzed.
提出并分别阐述二氧化碳排放权的排放额度需求、交易需求和投资需求3种概念,分析了使用价值、使用数量、生产技术水平等3个内生变量对企业碳排放权需求的影响;并论述了利益集团影响力、替代能源、交易价格和碳税等4个外生变量对企业碳排放权需求的作用机制,以及政府进行宏观碳排放权配置时应考虑这些变量的影响。
The authors forecast day-ahead electricity price by generalized autoregressive conditional heteroscedasticity(GARCH) model and as exogenous variable the daily price ratios of different weekday types are led into this GARCH mode to intensify the response of the proposed model to external influences.
利用广义自回归条件异方差模型预测电价,并在该模型中引入周用电比率作为外生变量,以增加模型对外界影响的响应。
So in this paper,one tried to apply those theories or methods of nonparametric and semi-parametric regression to nonlinear time series model with exogenous variables.
本文主要是将已有的非参数和半参数回归分析的理论与方法应用于具有外生变量的非线性时间序列模型之中,建立了我国城镇居民可支配收入和消费性支出数据的可加系数自回归模型、我国人口总量和GDP总量数据的半参数自回归模型和函数系数自回归模型、SARS日增量和当天最高温度的函数系数自回归模型,具体内容如下:1。
Ectomycorrhizal morphology and root hair growth and their relationships with the growth of Pinus thunbergii seedlings;
外生菌根形态及根毛生长状态与黑松生长的关系
Morphological Characteristics of Ectomycorrhiza on Pinus densiflora Seedlings;
赤松幼苗外生菌根的形态特征
Morphological Observation Methods of Ectomycorrhizas in Cathaya argyrophylla;
银杉外生菌根形态观察法探讨
Mechanism on Increasing Plant Aluminium Resistance by Ectomycorrhizae;
外生菌根提高植物抗铝性机理研究进展
The results showed that the investigated forests were all infected by ectomycorrhizae.
利用样方法于2003年8月对四川西部亚高山带分布的川滇高山栎(Quercus aquifolioides)、云杉(Picea asperata)、红桦(Betulaalbo-sinensis)、山杨(Populus davidiana)、铁杉(Tsuga chinensis)、华山松(Pinus armandi)、落叶松(Larix japonica)和冷杉(Abiesfaxoniana)8个主要森林类型的外生菌根进行了调查。