Opiate
发表于 2025-3-21 19:33:41
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不持续就爆
发表于 2025-3-21 23:48:51
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抒情短诗
发表于 2025-3-22 00:54:19
Business Cycles: Continuous Time, two such simple forces as consumers spending a given fraction of their incomes on consumption and producers keeping a fixed ratio of capital stock to output (=real income) combined to produce cyclical change was simple, surprising and convincing at the same time. This model if any qualifies for the
滔滔不绝的人
发表于 2025-3-22 06:22:44
Business Cycles: Continuous Space,ural way if we put the problem studied in a spatial setting by introducing interregional trade, considering a dynamical process that evolves both in continuous space and time. This will be done in the simplest and most obvious way, i.e., by a linear import-export multiplier, as is in line with the m
系列
发表于 2025-3-22 08:58:39
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缺乏
发表于 2025-3-22 13:43:14
Dynamics of Interregional Trade,rregional trade equilibrium and dynamics as formulated by Martin Beckmann in 1952 and 1953. This gives us one more opportunity to study partial differential equation models in economics and to employ the concepts from vector analysis introduced in Chapter 3.
厨师
发表于 2025-3-22 19:40:32
Development: Multiple Attractors, Moreover, these paths are often ., so called knife edge balanced growth routes, a limitation clearly admitted by the originator Sir Roy Harrod in 1948, but forgotten by later growth theorists. This is just a modelling imperfection — a misspecification of the process due to choosing a too low order
断断续续
发表于 2025-3-22 23:06:47
Book 20001st editionNotes in Economics and Mathematical Systems", and republished in three more, successively revised and expanded editions, as a Springer monograph, in 1991, 1993, and 1997. The frrst three editions were focused on applications. The last was considerably different, by including some chapters with mathe
Cardiac
发表于 2025-3-23 03:17:50
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间谍活动
发表于 2025-3-23 08:17:26
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