Do financial derivatives enhance or impede innovation? We aim to answer this question by examining the relationship between equity options markets and standard measures of firm innovation. Our baseline results show that firms with more options trading activity generate more patents and patent citations per dollar of R&D invested. We then investigate how more active options markets affect firms' innovation strategy. Our results suggest that firms with greater trading activity pursue a more creative, diverse and risky innovation strategy. We discuss potential underlying mechanisms and show that options appear to mitigate managerial career concerns that would induce managers to take actions that boost short-term performance measures. Finally, using several econometric specifications that try to account for the potential endogeneity of options trading, we argue that the positive effect of options trading on firm innovation is causal.

This first volume in a three-volume exposition of Shubik's vision of "mathematical institutional economics" explores a one-period approach to economic exchange with money, debt, and bankruptcy. This is the first volume in a three-volume exposition of Martin Shubik's vision of "mathematical institutional economics"--a term he coined in 1959 to describe the theoretical underpinnings needed for the construction of an economic dynamics. The goal is to develop a process-oriented theory of money and financial institutions that reconciles micro- and macroeconomics, using as a prime tool the theory of games in strategic and extensive form. The approach involves a search for minimal financial institutions that appear as a logical, technological, and institutional necessity, as part of the "rules of the game." Money and financial institutions are assumed to be the basic elements of the network that transmits the sociopolitical imperatives to the economy. Volume 1 deals with a one-period approach to economic exchange with money, debt, and bankruptcy. Volume 2 explores the new economic features that arise when we consider multi-period finite and infinite horizon economies. Volume 3 will consider the specific role of financial institutions and government, and formulate the economic financial control problem linking micro- and macroeconomics.

From the Nobel Prize–winning economist and former chair of the U.S. Federal Reserve, a landmark book that provides vital lessons for understanding financial crises and their sometimes-catastrophic economic effects As chair of the U.S. Federal Reserve during the Global Financial Crisis, Ben Bernanke helped avert a greater financial disaster than the Great Depression. And he did so by drawing directly on what he had learned from years of studying the causes of the economic catastrophe of the 1930s—work for which he was later awarded the Nobel Prize. This influential work is collected in Essays on the Great Depression, an important account of the origins of the Depression and the economic lessons it teaches.

This thesis consists of three essays on international finance. The first essay is "Exchange rates and Fundamentals". A new open interest rate parity condition that takes account of economic fundamentals is developed from stochastic discount factors (SDFs) of two countries. Through this parity condition, business cycles or fundamentals are linked to exchange rates. Key empirical findings from this parity condition are as follows. First, this model beats the random walk hypothesis: economic fundamentals explain exchange rate movements for high interest rate currencies. Exchange rates of low interest rate currencies act like a random walk because they are less correlated with fundamentals owing to their low risk. For example, U.S. business cycles explain the direction of changes in exchange rates against the dollar. The same thing is true for Japan. Second, this model resolves the forward premium puzzle: the forward premium puzzle is not a general characteristic as regarded in previous studies. It happens when the risk awareness of investors is low, during economic expansions and for low risk currencies. The second essay is "Carry Trade and Global Financial Instability". Carry trade, an opportunistic investment strategy that takes advantage of interest rate differential across countries, is identified the cause of the large-scale depreciations of peripheral currencies in the later half of 2008. A simultaneous equations model, which is derived from a conceptual partial equilibrium model for a local foreign exchange market, is estimated from a cross-sectional sample. The results suggest that the larger appreciation of the yen than the dollar was brought about by a lack of the local supply of the yen rather than a more severe crunch of yen credits. The third essay is "The Economic Origin of Letters of Credit". This essay discusses the economic origin of letters of credit, an instrument widely used in international trade. A game theoretical analysis shows that letters of credit improve efficiency in trade settlements, increasing returns in trade. A few notable facts on letters of credit are discussed. First, the new institution is adopted by merchant banks to maximize their profits and in the process, an improvement in efficiency of international transactions is obtained. Second, the organization established by the legacy institution, bills of exchange, played a critical role in adopting the new institution. Third, the legal enforcement is not essential in this economic institution. Finally, two drivers are identified that improve efficiency of transactions: concentration and projection.

In this slim, insightful volume, noted economist Samir Amin returns to the core of Marxian economic thought: Marx’s theory of value. He begins with the same question that Marx, along with the classical economists, once pondered: how can every commodity, including labor power, sell at its value on the market and still produce a profit for owners of capital? While bourgeois economists attempted to answer this question according to the categories of capitalist society itself, Marx sought to peer through the surface phenomena of market transactions and develop his theory by examining the actual social relations they obscured. The debate over Marx’s conclusions continues to this day. Amin defends Marx’s theory of value against its critics and also tackles some of its trickier aspects. He examines the relationship between Marx’s abstract concepts—such as “socially necessary labor time”—and how they are manifested in the capitalist marketplace as prices, wages, rents, and so on. He also explains how variations in price are affected by the development of “monopoly- capitalism,” the abandonment of the gold standard, and the deepening of capitalism as a global system. Amin extends Marx’s theory and applies it to capitalism’s current trajectory in a way that is unencumbered by the weight of orthodoxy and unafraid of its own radical conclusions.

This dissertation is a compilation of three essays I wrote during my investigation of China's foreign exchange markets. I list the abstract of each in the following paragraphs. Essay 1: Anomaly in China's Dollar--RMB Forward Market Newly-established data on onshore deliverable US dollar--RMB forwards and the Shanghai Interbank Offered Rate from October 2006 to April 2009 reveal significant violations of covered interest rate parity. This paper hypothesizes that these violations are caused by an increase in US dollar-to-RMB conversion restrictions. Given that Chinese monetary authorities want to prevent market participants from taking advantage of the predictable appreciation of the RMB, China's State Administration of Foreign Exchange has to tighten up the control on US dollar-to-RMB conversions. Under the tightened conversion restrictions, similar deviations will resurface in the forward market whenever hot money inflow increases. One way to avoid covered interest rate parity violations in the forward market is to decrease hot money inflow into China by maintaining a stable and credible exchange rate policy. Essay 2: Convertibility Restriction in China's Foreign Exchange Market and its Impact on Forward Pricing Different from the well established markets such as the dollar-Euro market, recent CIP deviations observed in the onshore dollar-RMB forward market were primarily caused by conversion restrictions in the spot market rather than changes in credit risk and/or liquidity constraint. This paper proposes a theoretical framework under which the Chinese authorities impose conversion restrictions in the spot market in an attempt to achieve capital flow balance, but face the tradeoff between achieving such balance and disturbing current account transactions. Consequently, the level of conversion restriction should increase with the amount of capital account transactions and decrease with the amount of current account transactions. Such conversion restriction in turn places a binding constraint on forward traders' ability to cover their forward positions, resulting in the observed CIP deviation. More particularly, the model predicts that onshore forward rate is equal to a weighted average of CIP-implied forward rate and the market's expectation of future spot rate, with the weight determined by the level of conversion restriction. As a secondary result, the model also implies that offshore non-deliverable forwards reflect the market's expectation of future spot rate. Empirical results are consistent with these predictions. Essay 3: The Global Credit Crisis and China's Exchange Rate The case for stabilizing China's exchange rate against the dollar is strong. Before 2005 when the yuan/dollar rate was credibly fixed, it helped anchor China's domestic price level. But gradual RMB appreciation from July 2005 to July 2008 created a "one-way-bet" that disordered China's financial markets in two respects: (1) no private capital outflows to finance China's huge trade surplus leading to an undue build up of official exchange reserves and erosion of monetary control, and (2) a breakdown of the forward exchange market in 2007-08 so that exporters could no longer get trade credit—probably worsening the severe slump in Chinese exports. But after July 2008, the credit crunch induced an unexpected unwinding of the dollar carry trade leading to a sharp appreciation in the dollar's effective exchange rate. The People's Bank of China (PBC) then stopped RMB appreciation against the dollar. China's forward exchange market was restored and monetary control regained. Now the PBC can better support the fiscal stimulus by promoting a parallel expansion of bank credit. But, since March 2009, the fall in the dollar (with the RMB tied to it) again threatens to undermine the yuan/dollar rate and China's monetary stability.