The impact of India’s food security policy on domestic and international rice market

Food security policy making in India is at crossroads. India has emerged as a leading rice exporter. The Government of India has introduced the National Food Security Act which requires 33.6 million tons of rice per year for its public food distribution system. In this study, we modeled India’s rice market and analyzed policy implications of the long-term impact of India’s food security act on domestic and international rice market. We developed a structural economic demand and supply model for India’s rice market and further added subsidy equations to trace the consequence of National Food Security Act on domestic rice consumption and on the international market. We specifically focus on three different scenarios: subsidy as price effect, subsidy as inelastic income effect, and subsidy as elastic income effect under the broader framework of National Food Security Act. We found that at the end of the projection period (2024–2025), as a result of rice subsidy program, the consumption of rice increases significantly in the case of price effect while the inelastic income effect has no or less impact on production, consumption, and export of rice. Hence, the policy implication of our study is that if the objective of the National Food Security Act is to increase consumption then it needs to be implemented as price effect.     

Commodity price shocks and the distribution of income in commodity-dependent least-developed countries

Many least developed countries (LDCs) face commodity dependence on the export and import side. This paper develops a structuralist computable general equilibrium model for commodity-dependent LDCs and simulates global commodity price shocks for Burkina Faso, Ethiopia and Mozambique. Results show important macroeconomic and distributional effects. Although increasing export commodity prices are beneficial, the high correlation with import commodity prices causes low or even negative combined effects. The magnitude of effects depends on the degree of import and export dependence, the production structure of the key commodity sectors and policies that determine the distribution of windfall profits.     

Reduced-Form Versus Structural Models of Water Demand Under Nonlinear Prices

Increasing-block prices are common in markets for water, cellular phone service, and retail electricity. This study estimates demand models under block prices and conducts a Monte Carlo experiment to test the small-sample bias of structural and instrumental variables (IV) estimators. We estimate the price and income elasticity of water demand under increasing-block prices using a structural discrete/continuous choice (DCC) model, as well as random effects and IV. Elasticity estimates are sensitive to the modeling framework. The Monte Carlo experiment suggests that IV and DCC models estimate both price and income elasticity with bias, with no clear best choice among estimators.     

近两年来价格上涨的特征、 原因及走势分析

 内容提要：2007年以来,我国市场价格呈现出快速上涨的态势,成为当前经济运行中的一个突出矛盾和问题。本文以大量翔实的数据,对近两年来价格上涨的主要特征进行了归纳和刻画,对上涨原因进行了全面系统客观的分析,特别指出了此轮价格上涨不同于以往的深刻背景。特别提出要正确处理好两个关系：防止通货膨胀与保持经济增长的关系,防止价格过快上涨与理顺价格体制的关系。     

物价涨幅明显上升 总体态势趋向偏热 ——2007年中国经济运行回顾

 内容提要：2007年,我国经济快速增长,物价涨幅明显上升,金融运行状况不断攀升,外部失衡加剧,经济总体态势趋向偏热。     

Optimal price,warranty length and production rate for free replacement policy in the static demand market

In the present paper, a decision model is developed for producers in the static demand market to determine the optimal price, warranty length and production rate of a product to maximize profit based on the pre-determined life cycle. The free renewal warranty policy is considered under which failed products are renewed before the end of warranty length at no cost to consumers. The expected number of renewals based on warranty length is derived for Weibull life distributed products. The objective function includes both demand and cost functions, where production cost, warranty cost and inventory cost are involved. A solution approach using the maximum principle is described, and is applied to two specific cases of markets. The first case of market considers positive discount rate, and the second case of market considers zero discount rate. The economic sensitivity analysis is conducted to evaluate the effect of model parameters on the optimal solution. Some conclusions are drawn based on the sensitivity analysis.     

说唐代牡丹

唐高宗时 ,皇后武则天移植汾州牡丹于京师长安 ,牡丹作为观赏花卉 ,始为社会普遍认识。佛教僧人为培育牡丹做出了重大贡献。牡丹价格始终昂贵。唐代赏牡丹蔚然成风。牡丹与社会生活结成种种关系 ,还进入音乐、美术领域     

价格波动的可控性

本文研究了如何提出合理的预期价格,保证供给和需求趋于均衡,从而实现价格波动的可控性。     

被收购企业的博弈分析

在企业的收购活动中,收购价格始终处于一个相当关键的地位,收购能否成功,很大程度上取决于双方是否能在收购价格上达成一致.本文采用现代博弈论的分析方法,以古诺(Cournot)模型为基础,讨论了均衡收购价格的确定.量化论证了在不完全信息的情况下,最终的均衡收购价格比完全信息的情况下要高.同时指出,企业的资产负债率(Debt-to-Assset Ratio)以及由此形成的加权平均资本成本(Weighted-Average Cost of Capital)对均衡价格方面也有一定的影响.     

城市房价与失业率的关联性研究

房价与失业率是社会与经济波动的主要振荡源,已引起政府部门的高度关注。而目前国内外对房价与失业率关联性的研究几乎是一片空白。基于此,本文从中国的实际情况出发,以国内房价与失业率的数据为研究依据,通过协整分析和格兰杰因果检验,对房价与失业率的关联性进行了实证分析。结果显示:房价与失业率存在关联,房价的变动对失业率会产生显著影响,且房价对失业率的短期效用为负,长期效应为正;而失业率对房价的影响微弱。为维持房价稳定和保证充分就业,政府应采取相应的政策措施。