On credit and output: Is the supply of credit relevant?

The consensus that changes in the supply of credit were irrelevant to making monetary policy decisions existed among macroeconomists during the second half of the twentieth century. Transmission of shocks to the real economy through changes in the supply of credit, however, played an important role in the recent U.S. financial crisis. This paper explores the extent to which policymakers should consider changes in the supply of credit when making forecasts and monetary policy decisions. More specifically, it considers whether a measure of real credit balances offers consistent and stable information, beyond that of a real interest rate and real money balances, about future output gaps during the U.S. post-war era. Results yield evidence that changes in real credit balances are the only variable, among those considered, to provide consistent and stable information about future output gaps over the entire sample period. Each information variable, however, provides relatively little value added for forecasting future output gaps, beyond a simple autoregressive model. To improve upon forecasts and monetary policy decisions, policymakers therefore should consider a broader range of information variables and occasionally reassess the relative weightings assigned to each.     

社会融资规模作为金融宏观调控中介目标的适用性分析

本文采用2002年第1季度至2012年第2季度数据考察了三个备选的金融宏观中介目标——社会融资规模、人民币贷款和广义货币M2。图形直观分析、脉冲响应分析以及协整关系分析三种方法均表明：第一,M2不是一个理想的中介目标。第二,不论从与实体经济还是与物价指数的关系看、从中短期影响还是从长期均衡关系看,社会融资规模在三个中介目标中表现最好,建议我国以社会融资规模作为金融宏观调控的中介目标。第三,实体经济较物价指数更快受到金融宏观调控政策（中介目标变量）的影响。调控发生后,实体经济约5季后正效应达到最大,物价指数约在2至3年间响应达到最大。政策时滞对制定前瞻性的金融宏观政策具有一定指导意义。     

我国资产价格波动与货币政策关系研究

随着金融自由化的逐步推进,资本市场存量日益增大.这既体现了金融深化程度的提高,又意味着货币供应与国民经济主要指标之间稳定性的弱化.资产价格对货币政策的制订和执行会产生深刻的影响.其中股价、房价等资产价格在货币政策传导机制中扮演的角色越来越重要.本文从实证角度出发,通过构建VAR模型检验我国资产价格对货币政策的反应以及资产价格对货币政策目标的影响,发现资产价格、货币政策及货币政策目标间存在长期协整关系,资产价格对产出有正向冲击作用,股市显著影响通货膨胀,但房地产市场对通货膨胀推动作用不明显,资产价格受货币政策的冲击影响显著,其中股市对货币政策冲击的反应明显大于房地产市场.     

Money, endogenous fertility and economic growth

This paper analyzes the issue of money superneutrality through an intertemporal optimizing model of capital accumulation with endogenous fertility, i.e. endogenous population growth. Two elements of this setup invalidate money superneutrality: (i) a demand for fertility that depends on real money balances, and (ii) an inverse relation between capital–labor ratio and population growth. Higher monetary growth increases fertility, since it reduces its opportunity cost, and hence diminishes capital intensity, and per capita output. This reverse Tobin effect is matched by an increase in aggregate capital and output growth rates. In this framework, the optimal monetary growth rule is a “distorted Friedman rule”.     

人民币升值、外币资产增长与货币供给

本文以汇率的资产组合决定论为基础,探讨了我国央行干预外汇市场对本币供给的影响机制.近年来,人民币产生升值预期,我国外币资产单边增长,央行通过干预外汇市场投放本币的方式,既维护了人民币汇率稳定,又解决了货币供给.伴随着外币资产的过快增长,这种货币供给机制势必引发外汇占款激增,理论上央行能够对冲过剩的流动性,但在实际操作中,央行的对冲流动性工具不能无限使用.只要人民币存在升值预期,我国货币供给受纠冲击的风险就不断累积.为了化解货币危机,必须消除人民币升值预期,对我国经济发展战略、人民币汇率形成机制进行涮整.     

Two early Swedish debates about Wicksell's cumulative process

The paper contains a survey and analysis of two debates between Wicksell and a number of Swedish economists concerning the cumulative process. The debates illustrate various problems with the analytical formulation of the cumulative process and how these problems were dealt with by the participants. Inter alia the institutional framework (inside versus outside money), excess demand or interest gap as an engine of inflation, the natural and the normal rate of interest, the relationship between the real and the monetary parts of the economy and price expectations are discussed in the paper.     

State-dependent pricing, inflation, and welfare in search economies

We investigate the welfare effects of inflation in economies with search frictions and menu costs. We first analyze an economy where there is no transaction demand for money balances: Money is a mere unit of account. We determine a condition under which strictly positive inflation is desirable. We relate this condition to a standard efficiency condition for search economies. Second, we consider a related economy in which there is a transaction role for money. In the absence of menu costs, the Friedman rule is optimal. In the presence of menu costs, the optimal inflation rate is negative for our numerical examples provided menu costs are small. A deviation from the Friedman rule can be optimal depending on the extent of the search externalities.     

我国M_2/GDP的动态增长路径、货币供应量与政策选择

本文试图求解我国M2/GDP的动态增长路径,并对与此相关的金融政策选择进行分析。研究发现,我国M2/GDP的变动路径具有Logistic曲线的基本形状,将经历先加速上升后增长速度逐渐减缓,最终趋于稳定状态的变化过程。本文估算了我国M2/GDP的增长上限及其变化拐点。研究还发现,M2/GDP的上升并不必然意味着通胀压力加大,只有M2/GDP偏离动态增长路径时,才会对通货膨胀产生影响。据此本文估算了2005年货币供应量的合理区间。本文认为,应继续实施稳健货币政策,合理确定货币总量增长速度,继续推进体制性改革等措施确保经济金融的稳定运行。     

Milton Friedman's monetary economics and the quantity-theory tradition

This article provides a selective review of Milton Friedman's contributions to monetary economics focusing on five areas in particular: the demand for money, the joint historical and empirical work with Anna J. Schwartz, the theoretical and empirical analyses of the Phillips Curve, monetary policy and monetary dynamics.     

“热钱流出之谜”与隐性资本流动——对热钱流动规模的重新估算

我国"半开放、半管制"的国际收支(BOP)结构特征和"宽进严出、放长限短"的资本管制特点使得基于资本自由流动国家的热钱估算方法不完全适用我国.热钱在中国流动具有隐蔽性和非法性,必须剔除诸如贸易伪报、资本夹杂和地下钱庄等隐性渠道对热钱流动规模的影响.本文以世界银行间接法和我国BOP为基础,首先提出"热钱流出之谜",然后分析热钱在中国流动的隐性渠道.并将其纳入估算模型,估算结果基本反映了热钱在中国流动的趋势和特点,具有科学性和合理性.