The impact of a ‘soda tax’ on prices: evidence from French micro data

Based on an original data set of more than 500,000 non-alcoholic beverage price records, we evaluate the impact on consumer prices of the ‘soda tax’, an excise on drinks with added sugar or sweetener, introduced in France in January 2012. We adopt a difference in differences approach and find that the tax was gradually passed through to the prices of the taxed beverages. After 6 months of its introduction, it was fully shifted to soda prices and almost fully shifted to the prices of fruit drinks, while the pass-through for flavoured waters was incomplete. We also find that the pass-through was heterogeneous across brands and retail groups.     

人民币汇率传递的不对称性及其对中国进出口的影响

从汇率传递不对称性角度分析了汇率变动对进出口的影响和对马歇尔-勒纳条件的影响;利用中国进出口的国别面板数据进行实证检验,得出人民币汇率变动对进口的影响大于对出口的影响,人民币汇率贬值对进出口影响大于升值对进出口的影响;根据汇率传递的不完全性和不对称性分析了人民币汇率变动对中国进出口影响的有限性和不对称性的原因。     

中美小麦期货价格与现货价格传递关系的比较研究

为研究我国小麦期货市场价格发现功能的发挥程度及此功能对现货市场价格的影响,本文运用Johansen协整检验、误差修正模型、脉冲响应函数和方差分解等对中美小麦期货与现货价格传递关系进行了实证研究。结果显示：中美两国国内小麦期货与现货价格之间均存在明显的双向引导关系和长期均衡关系;我国小麦期货价格和现货价格对一个标准差信息冲击的反应均稍强于美国;我国小麦期货市场价格发现功能的发挥程度要优于美国。     

Determining underlying macroeconomic fundamentals during emerging market crises: Are conditions as bad as they seem?

Emerging market crises are characterized by large swings in both macroeconomic fundamentals and asset prices. The economic significance of observed movements in macroeconomic variables is obscured by the brief and extreme nature of crises. In this paper we propose to study the macroeconomic consequences of crises by studying the behavior of “effective” fundamentals, constructed by studying the relative movements of stock prices during crises. We find that these effective fundamentals provide a different picture than that implied by observed fundamentals. First, asset prices often reflect expectations of improvement in fundamentals after the initial devaluations; specifically, effective depreciations are positive but not as large as the observed ones. Second, crises vary in their effect on credit market conditions, with investors expecting tightening of credit in some cases (Mexico 1994, Philippines 1997), but loosening of credit in others (Sweden 1992, Korea 1997, Brazil 1999).     

Nonlinear Exchange Rate Pass-Through: The Role of National Debt

This study uses the panel smooth transition regression model with a debt ratio as the transition variable to evaluate the level of exchange rate pass-through. This model can investigate the threshold effect of the debt ratio on the pass-through. To perform the empirical estimation, we choose the 22 Organization for Economic Co-operation and Development member countries during 1994–2013 as sample objects. The empirical results show that the exchange rate pass-through displays a nonlinear and smooth transition process, depending on each period of debt ratio of the export country in different regimes. That is, the pass-through is nonlinear and varies with time and across countries. The larger the debt ratio is, the lower the pass-through would be. The threshold for the pass-through to generate smooth regime switching is 36.62% of debt ratio.     

Inflation Targeting and Exchange Rate Pass-Through: The Turkish Experience

Using a vector autoregression model, we show that the pass-through from imported inflation to domestic inflation has weakened substantially and slowed after the adoption of inflation targeting in Turkey. We argue that this finding is due mainly to several features—such as enhanced credibility of the central bank, changing behavior of the exchange rate, and a shift in expectation formation—possibly acquired by the implementation of a successful inflation-targeting regime. These observations suggest that adopting an inflation-targeting regime in itself may help to reduce exchange rate pass-through.     

Theoretical and Empirical Evidence for the Impact of Cross-Border Production Sharing on Exchange Rate Pass-Through

This paper uses the theoretical model created by Ghosh (2009) to analyze the extent of exchange rate pass-through (ERPT) for traditional trade and different production sharing cases. Comparing the differences among these scenarios reveals that production sharing could be a reason for the continual decline in ERPT. Furthermore, empirical evidence from Taiwan indicates that under production sharing, the pricing-to-market for intermediate goods exporters and the currency fluctuation in the home country of end products exporters will further influence the magnitude of the decline in ERPT.     

国家规模、对外开放度与汇率制度的选择——基于福利的数量分析

本文在“新开放经济宏观经济学”框架下建立了基于名义工资粘性的两国一般均衡随机模型，从生产率和货币冲击角度定量分析了国家规模与对外开放度在不同汇率制度下对福利的影响。结果显示，别国相对本国经济规模与本国开放度的乘积越大，即本国越小或对外依存度越大，则本国越倾向于选择浮动汇率；反之，则倾向于选择固定汇率。     

人民币汇率传递的不对称效应

在不同的汇率波动方向及波动幅度下,汇率传递可能是不对称的。利用中国17个主要贸易伙伴1994～2008年年度数据对人民币汇率传递的不对称性实证研究发现,在不同的汇率波动方向下,汇率传递弹性是不同的。人民币汇率贬值时的汇率传递弹性为负,升值时的汇率传递弹性为正。在不同的汇率波动幅度下,汇率传递同样是不对称的。当人民币汇率波动幅度小于2．68％时,汇率传递弹性为-0．5815;当汇率波动幅度大于2．68％时,汇率传递弹性为-0．0578。