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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,341 papers · 148 categories

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48 results for currency similarity

This paper uses bivariate time series to analyze currency similarity in the foreign exchange market.

problem Analyzing similarity among currencies in the foreign exchange market.
method Applies Escoufier's RV coefficient to measure similarity between bivariate time series of currency exchange rates.
result Demonstrates the advantages of using RV coefficient for analyzing currency topological structure.

The study reveals the hierarchical structure of the international FOREX market using currency fluctuation distribution similarities.

problem Understanding the hierarchical structure of the international FOREX market.
method Using Jensen-Shannon divergence to quantify the similarity between normalized logarithmic return distributions of currencies.
result Clusters of currencies are consistent with the nature of underlying economies but diverge during crises.

Study shows cryptocurrency price fluctuations become more similar to national currencies over time.

problem Understanding the volatility and inequality in cryptocurrency prices.
method Calculated inequality measures (Gini, Kolkata indices, QQ factor) for cryptocurrency and national currency price fluctuations over 10 years.
result Cryptocurrency price fluctuations become more similar to national currencies over time.

Study finds Bitcoin crypto currency rate correlates with social network activity.

problem Detecting correlation between crypto currency rate and social network activity.
method Comparative correlation and fractal analysis of time series data.
result Time series of Bitcoin rate and social network activities exhibit self-similar and multifractal properties.

In this paper an econophysics model for the currency exchange operations with commission is proposed. With this purpose some analogies and similarities of the processes that take place in the frame of the electrochemical system made from electrodes sunk into a solution of electrolytes and the process of the currency ex…

2010-05-03abs ↗pdf ↗

This paper empirically analyses risk in the Euro relative to other currencies. Comparisons are made between a sub period encompassing the final transitional stage to full monetary union with a sub period prior to this. Stability in the face of speculative attack is examined using Extreme Value Theory to obtain estimate…

2011-03-28abs ↗pdf ↗

Deviation from universal exponents in currency markets reveals economic properties.

problem Identifying invariant behavior in heterogeneous complex systems.
method Analysis of exchange rate dynamics in international currency market.
result Exponents of fluctuation distributions for different currencies diverge from a universal form.

A large collection of daily time series for 60 world currencies' exchange rates is considered. The correlation matrices are calculated and the corresponding Minimal Spanning Tree (MST) graphs are constructed for each of those currencies used as reference for the remaining ones. It is shown that multiplicity of the MST …

2008-10-07abs ↗pdf ↗

We decompose the exchange rates returns of 41 currencies (incl. gold) into their sign and amplitude components. Then we group together all exchange rates with a common base currency, construct Minimal Spanning Trees for each group independently, and analyze properties of these trees. We show that both the sign and the …

2009-11-16abs ↗pdf ↗

In this paper we analyze Gresham's Law, in particular, how the rate of inflow or outflow of currencies is affected by the demand elasticity of arbitrage and the difference in face value ratios inside and outside of a country under a bimetallic system. We find that these equations are very similar to those used to descr…

2012-01-17abs ↗pdf ↗

This study analyzes cryptocurrency price dynamics using complexity-entropy causality.

problem Understanding the price dynamics of cryptocurrencies during market booms and busts.
method Used permutation-information-theory quantifiers and complexity-entropy causality plane.
result Discerned three distinct dynamics in cryptocurrency price data.

This study finds similarities between currency exchange dynamics and supercooled systems.

problem Understanding the dynamics of currency exchange markets.
method Comparing EURUSD price fluctuations to colloidal dynamics and using models for arrested physical systems.
result EURUSD price fluctuations exhibit two-step dynamics similar to supercooled systems.

The paper presents a framework for optimizing crypto-currency portfolios using generative models.

problem Optimizing crypto-currency portfolios using generative models.
method The approach involves evaluating diverse pairings of generative model forecasts and objective functions, using simulations and blending strategies.
result Eclectic blended portfolios outperform individual generative model-based portfolios.

By analyzing the foreign exchange market data of various currencies, we derive a hierarchical taxonomy of currencies constructing minimal-spanning trees. Clustered structure of the currencies and the key currency in each cluster are found. The clusters match nicely with the geographical regions of corresponding countri…

2005-08-23abs ↗pdf ↗

We explore inverse and quanto inverse crypto options, their pricing, and applications.

problem Market incompleteness in crypto options trading.
method Comparison of direct and inverse options, and introduction of currency-protected 'quanto' options.
result Pricing and hedging characteristics of inverse and quanto inverse options in a Black-Scholes framework.

Paper examines pricing and hedging for cross-currency swaps referencing backward-looking rates.

problem Pricing and hedging cross-currency swaps with backward-looking rates.
method Uses interest rate and currency futures for hedging, analyzes arbitrage-free multi-curve setting.
result Explicit pricing and hedging results for CCBS with backward-looking rates.

Brazil proposes a new BRICS trade currency to dominate international trade.

problem Dominance of BRICS currency in international trade.
method Mathematical model of influence battle between three currencies, using trade flows and weights in global trade.
result By 2012, about 58% of countries preferred trading with the BRICS currency.

Our study proposes a new currency system to protect wealth from over-issued fiat and stablecoins.

problem The over-issuance of fiat and stablecoins undermines the stability of currency purchasing power.
method We introduce a parallel monetary system based on redeemable self-decaying money (RSDM) to provide a stable currency alternative.
result A parallel monetary system including RSDM, domestic fiat, and major reserve currencies can safeguard wealth and prevent the reverse Gresham law.

Study examines risk of digital currencies using GARCH and Filtered Historical Simulation.

problem Risk management of digital currencies like Bitcoin, Ethereum, Litecoin, and Ripple.
method GARCH modelling followed by Filtered Historical Simulation.
result Digital currencies are subject to higher risk, requiring higher buffer and risk capital.

The paper examines dynamic reserving for multiple currencies under coherent risk measures.

problem Dynamic reserving for risk in multiple currencies under a general coherent risk measure.
method Shows time-consistency of reserving portfolios in multiple currencies when a generalized m-stability condition holds, equivalent to dynamic trading across baskets of currencies with proportional transaction costs.
result A version of the Fundamental Theorem of Asset Pricing holds in this context, proving time-consistency of reserving portfolios.

World currency network constitutes one of the most complex structures that is associated with the contemporary civilization. On a way towards quantifying its characteristics we study the cross correlations in changes of the daily foreign exchange rates within the basket of 60 currencies in the period December 1998 -- M…

2007-08-31abs ↗pdf ↗

We analyze structure of the world foreign currency exchange (FX) market viewed as a network of interacting currencies. We analyze daily time series of FX data for a set of 63 currencies, including gold, silver and platinum. We group together all the exchange rates with a common base currency and study each group separa…

2009-06-02abs ↗pdf ↗

Develops a new model for cross-currency derivatives pricing.

problem Pricing cross-currency derivatives in a complex market model.
method Introduces a random field LIBOR market model to handle uncertainty in forward LIBOR rates.
result Derives exact and approximate pricing formulas for various derivatives.

A large set of daily FOREX time series is analyzed. The corresponding correlation matrices (CM) are constructed for USD, EUR and PLZ used as the base currencies. The triangle rule is interpreted as constraints reducing the number of independent returns. The CM spectrum is computed and compared with the cases of shuffle…

2006-06-02abs ↗pdf ↗

The paper models currency substitution and money demand in CEE countries, finding interest rate spreads influence money demand.

problem Understanding currency substitution and money demand in CEE countries.
method Developed a microeconomic model to differentiate currency substitution from money demand sensitivity to exchange rate variations.
result Money demand is influenced by the interest rate spread between CEE countries and the euro area, not just currency substitution.

Study multi-currency markets with multiple interest rates and collateral.

problem Characterize absence of arbitrage in a multi-currency market.
method Generalize results from Bielecki and Rutkowski (2015) to a multi-currency framework, linking with Piterbarg (2012), Moreni and Pallavicini (2017), and Fujii et al. (2010b). Characterize absence of arbitrage without collateral, then study collateralization schemes under various conventions.
result Complete study of absence of arbitrage and pricing in multi-currency markets with multiple interest rates and collateral.

This paper optimizes international portfolios considering currency overlay costs and constraints.

problem Limited risk diversification in multi-currency portfolios due to currency concentration.
method Proposes a model integrating currency overlay and asset allocation optimization, accounting for costs and constraints.
result Inclusion of costs significantly alters optimal portfolio decisions and risk-return trade-offs.

Optimizing dividend payouts in a foreign currency for insurance companies.

problem Maximizing expected discounted dividends in a foreign currency context.
method Modelled as a Brownian motion with drift and Lévy process for currency fluctuation, explicit calculations for value function and strategy.
result Explicit calculation of value function and optimal strategy for dividend payouts.

Study prices currency options using fractional delta hedging with transaction costs.

problem Pricing European currency options with transaction costs in fractional Black Scholes model.
method Applied delta hedging strategy to derive pricing formula and PDE.
result Fractional Black Scholes model with transaction costs is a satisfactory model.

Develops a new framework for currency option pricing with transaction costs.

problem Pricing currency options under transaction costs and fractional Brownian motion.
method Analytic formula derived using mean self-financing delta-hedging in a discrete time setting.
result Minimal price formula for currency options under transaction costs.

Gold and currency markets form a unique pair with specific interactions and dynamics. We focus on the efficiency ranking of gold markets with respect to the currency of purchase. By utilizing the Efficiency Index (EI) based on fractal dimension, approximate entropy and long-term memory on a wide portfolio of 142 gold p…

2015-10-29abs ↗pdf ↗

For the purpose of elucidating the correlation among currencies, we analyze daily and high-resolution data of foreign exchange rates. There is strong correlation for pairs of currencies of geographically near countries. We show that there is a time delay of order less than a minute between two currency markets having a…

2003-03-17abs ↗pdf ↗