Localization of a demand for nursing model at the grassroots level

A major obstacle to the development of a usable demand model for nursing is the standardization of the definition for "demand." The lack of standardization of economic terms which are utilized in the state demand models is contributing to the failure of the long-range forecasting process for nursing nationwide. Any state that chooses to utilize U.S. Department of Health and Human Services' Health Resources and Services Administration data has selected a model which is invalid due to failure to include all members of the nursing population since this definition excludes LPNs completely. Likewise, state nursing demand models in California, Pennsylvania, North Dakota, New Jersey, and the District of Columbia have similar disadvantages. Only at a localized county-by-county grassroots level can a nursing demand model be translated into an equation which would actually calculate demand for nursing.     

互联网+场景模式下反向驱动创新研究

互联网时代,快节奏的生活方式促成了时间碎片化,而人们的生活也逐渐处于多个碎片化的场景中。在互联网时代,“拥有规模化的客户并能够很好地满足其需求是企业生存与发展的根本”这一说法已经得到了充分印证,同时,不断升级的客户需求又进一步驱动企业不断创新。基于互联网时代的场景模式,从消费者需求出发,运用多案例研究法,探究案例企业由客户需求引发的反向创新动因、要素及实现路径,得出如下结论：①“互联网+”场景下,客户需求的不断升级是驱动企业反向创新的主要动因;②反向驱动创新的实现要素包括客户需求升级、技术迭代进步或商业模式颠覆性突破;③反向驱动创新的实现路径由客户需求升级引发市场机会进而引发企业技术或商业模式创新。     

An investigation into the demand for alcoholic beverages in Canada: a choice between the almost ideal and the Rotterdam models

In this article I investigate the historical pattern of interactions in the demand for three categories of alcoholic beverages in Canada, using both the differential Almost Ideal and the differential Rotterdam demand systems. I evaluate these models based on several decision criteria including model encompassment (based on the J-test), structural stability, conformity with demand theory and the credibility of the estimated price and income responses, in an attempt to determine which of these models is better suited for explaining the demand for alcoholic beverages. The results reveal that both models satisfy the restrictions of demand theory and of structural stability but the Rotterdam model is preferable on grounds of the remaining two criteria.     

Long-run Effective Demand in the US Economy: An Empirical Test of the Sraffian Supermultiplier Model

The Sraffian supermultiplier is a model of demand-led growth that stresses the importance of the autonomous components of aggregate demand (exports, public spending and autonomous consumption). This article tests empirically some major implications of the model employing macroeconomic data for the United States. In particular, we study the long-run relation between autonomous demand and output through cointegration analysis. The results suggest that autonomous demand and output are cointegrated and that autonomous demand exerts a long-run effect on output. There is also some evidence of simultaneous causality, especially in the short-run. Movements in autonomous demand and in the investment share are also found to be positively related, with Granger-causality going from Z to I/Y.     

On the empirical relevance of the Lucas critique: the case of euro area money demand

This paper examines the relevance of the Lucas critique for euro area money demand. Based on the money in the utility function approach, a vector error correction model is specified to investigate the relationship between money and inflation in times of policy shifts. A well defined equation for money demand is obtained. The results indicate that the evolution of M3 is still in line with money demand. In the long run, inflation is affected by asset prices and detrended output. Our results show that the Lucas critique can be refuted in case of euro area money demand for the period of quantitative easing. Thus, the estimated money demand equation provides reliable information for the conduct of future monetary policy.     

Modelling demand and supply influences on utilization: A flow demand model to predict hospital utilization at the small area level

This study outlines a model to predict hospital utilization at the small area level within a National Health Service (NHS) institutional context. The proposed approach departs from alternative analyses based on utilization flows of hospital care between a local population and a hospital. A flow demand model is outlined that relates flow demand to utilization flows; models the interaction between hospital supply and utilization of alternative hospitals; captures the process of demand for hospital care, with special attention given to the role of other health care sectors, to the organizational and institutional context of the hospital system and to geographic variations. The flow approach partly overcomes the problem of dealing with simultaneity of determination between supply and demand. A two-part econometric model suitable to estimate the flow demand model for prediction purposes is tested and applied to the Portuguese health care system. The results show the model to be robust and to provide key information for defining future hospital policies at the central level.     

Monetary versions of the balanced budget multiplier

This paper examines the impact of varying the specification of the demand for money on the size of the balanced budget multiplier. The money demand may shift autonomously following a balanced budget change in government spending if private money demand is dependent on disposable rather than total income or if, due to a lag in the government spending process, a nonzero incremental governmental money demand exists. The implications of these assumptions are determined in a pure monetary model and then in an IS-LM model. In each case the balanced budget multiplier differs from the conventional result.     

Expenditure elasticities of the demand for leisure services

Although some research has already focused on the analysis of expenditure elasticities of leisure demand, some shortcomings with regard to the content and the underlying theoretical model as well as the applied methods exist. This article aims at avoiding these problems to provide consistent derivatives of leisure service expenditure elasticities. Therefore, a regular demand system is derived from microeconomic duality theory. To implement leisure specific demand factors (i.e. demand- and supply-based sports and recreational opportunities as well as sports and recreational preferences) while still being consistent with neoclassical demand theory, the basic model is extended by applying the demographic translation framework. Data of the continuous household budget survey (n?=?7724) from Germany is used for the estimation of the derived demand system. It is shown how sensitive the results are depending on the applied (censored) regression model: 16 out of 18 analysed services are indicated as luxury goods based on the findings of the Tobit model type I but as necessities based on the findings of the Tobit model type II. Possible implications are presented and discussed.     

产业融合与融合产品的需求增长--基于修正的Bass模型的分析

产业融合形成的创新性产品所带来的需求增长包含了两个过程:一是对产业融合的原有产业市场需求的替代,二是创造出原有市场之外的新的市场需求。本文在对Bass及相关模型的假设条件作出适当修正的基础上,建立了能够方便、准确地对融合产品的需求增长状况进行分析和估计的产业融合需求增长模型。基于这一模型,本文对融合产品的需求替代和创新、融合产品的需求增长估计以及融合产品的需求增长趋势进行了经验验证和预测。     

Functional forms and habit effects in the US demand for coffee

Coffee remains the leading hot beverage consumed in the United States. The present study specifies for estimation an unrestrictive Box-Cox demand model (1957–87 data) and its nested forms, to provide more recent estimates and assess potential functional misspecification in past studies fitting a priori restrictive models; incorporates the (health trend) effects of sugar and orange juice and tests the compatibility of coffee demand data with the habit

formation hypothesis; and assesses implications of demand elasticity estimates for projected producer revenues and demand for imported coffee. Maximum-likelihood estimates of the Box-Cox model: automatically satisfy theoretical demand properties; support strongly incorporating habits and related beverage and sugar prices in coffee demand model; predict inelastic US coffee consumption to reduce per capita 24% and increase producer revenues 6.3% in 2000.     

Industry dynamics, technological regimes and the role of demand

In this paper, we propose an industrial dynamics model to analyze the interactions between the price-performance sensitivity of demand, the sources of innovation in a sector, and certain features of the corresponding pattern of industrial transformation. More precisely, we study market concentration in different technological regimes and demand conditions. The computational analysis of our model shows that market demand plays a key role in industrial dynamics. Thus, although for intermediate values of the price-performance sensitivity, our results show the well-known relationships in the literature between technological regimes and industry transformation, we find surprising outcomes when demand is strongly biased either towards price or performance. Hence, for different technological regimes, a high performance sensitivity of demand tends to concentrate the market. On the other hand, under conditions of high price sensitivity, the industry generally tends to atomize. That is to say, for extreme values of the price-performance sensitivity of demand, we find concentrated or atomized market structures no matter the technological regime we are in. These results highlight the importance of considering the role of demand in the analysis of industrial dynamics.     

Adjustment costs and time-to-build in factor demand in the U.S. manufacturing industry

In order to explain cyclical behavior of factor demand, the static neoclassical model of the firm has been extended to include either adjustment costs (e.g. Lucas (1967)) or time-to-build considerations as in Kydland and Prescott (1982). This paper presents an intertemporal factor demand model which accounts for adjustment costs and gestation lags. The closed form solution of the model is a highly restricted vector ARMA-process that is estimated using quarterly data for the manufacturing industry in the U.S., 1960–1988. The main conclusion is that both sources of dynamics of factor demand are identifiable and found to be empirically of importance.     

Analysis of the supply and demand in the TFT–LCD market

A methodology for the analysis of the supply and demand in the Thin-Film Transitor (TFT)-liquid crystal display (LCD) market in 2004 is proposed. The quarterly history supply and demand data are collected from 63 factories in Taiwan, Korea, Japan, and China during 2000–2003. This method takes into the account supply, demand, and differences between supply/demand. For the supply, a heuristic approach is used to forecast the future supply. For the demand, a transfer function model is used to forecast the future demand. The difference analysis of the supply and demand shows that it can predict whether or not there appears to be a shortage in the market of 2004. In addition, three important managerial implications such as pricing strategy, product-mix decision, and customer's priority are discussed in this paper.     

Learning by Consumers in the Demand for Japanese Cars

This paper provides an empirical analysis of the impact of consumer learning over time on the demand for Japanese cars, using both a multinomial logit demand model and the Berry–Levinsohn–Pakes demand model ( Econometrica , vol. 63, 1995, 841–90). The data suggest that learning about particular models, manufacturers, and Japanese cars as a group had a positive impact on the demand for individual models during the 1970s and 1980s.     

Estimating and testing the compensated double-log demand model

In spite of the proliferation of flexible functional forms for consumer demand systems, the double-log demand model continues to be popular, especially in applied work calling for single-equation models. It is usually estimated in uncompensated form. It can also be estimated in compensated form, by deflating the income variable alone using Stone's price index. The compensated form has the same right-hand side as a single-equation version of the popular linear approximation to the Almost Ideal demand model, facilitating the construction of a test for choosing between the two alternatives. This paper demonstrates these results, develops the specification test, and illustrates its application using US meat consumption data. Simulations suggest that the test is well-behaved with good power in typical applications.     

Measuring and testing advertising-induced rotation in the demand curve

Advertising can rotate the demand curve if it changes the dispersion of consumers’ valuations. We provide an elasticity form measure of the advertising-induced demand curve rotation in five demand models and test for its presence in the US nonalcoholic beverage market. The Almost Ideal Demand System (AIDS) model reveals that doubling advertising spending rotates the demand curves clockwise for milk, and coffee and tea with associated slope changes of 7 and 12%. Soft-drink advertising rotates its demand curve counterclockwise. Our policy suggestion is that milk and soft-drink firms time advertising to coincide with high-and low-price periods, respectively.     

需求要素对中国经济增长影响的实证研究——基于边限检验理论的视角

在建立无约束误差修正模型的基础上，运用边限检验方法对需求要素对中国经济增长影响的实证研究表明，中国经济增长与需求因素之间存在长期稳定关系，需求的不同组成部分对中国经济增长有不同的影响。在长期，只有资本形成总额的影响显著，在短期内，需求各要素对中国经济增长都有显著的影响。     

Income distribution and composition of consumer demand in the Spanish economy

In this paper we formulate a complete system of demand functions, to characterize the change in private consumption demand induced by the redistribution of consumers' income. This system attempts to cover the lack of a demand model suitable for the study of the income redistribution effect on the structure of the Spanish productive system. The specification of the model is such that the Price Independent Generalised Linearity (PIGL) conditions hold, thereby ensuring a consistent aggregation across consumers. It is also assumed that the Relative Income Hypothesis holds. The estimation is made with data from a survey of household budgets.     

Exchange rate volatility and the demand for money in the U.S.

This paper examines the effect of changes in the level and volatility of exchange rates on the demand for money. It hypothesizes that exchange rate volatility exerts a negative influence on money demand separate from the effect of the level of exchange rates. Using U.S. data covering the period from 1974.1 to 1990.4, it is found that, regardless of whether the adjustment process is modeled as an error-correction or a partial-adjustment model, exchange rate volatility is negatively related to the demand for real M2 balances. This relationship is found to be more pronounced when exchange rates are expressed in real terms. The results imply that money demand responds to both the volatility of domestic prices relative to foreign prices and to the volatility of nominal exchange rates. Little evidence is found in support of the hypothesis that the level of exchange rates exerts a significant influence on money demand.     

电力需求分析与实证研究

目前中国电力供应长期处于紧张状态,需求大于供给的矛盾将长期存在,需求预测管理将有助于缓解供需矛盾。分析影响电力需求的主要经济因素,建立计量经济模型,对分析和预测电力需求的增长具有现实的意义。