In the second half of The Federalist Papers #7, Alexander Hamilton shows a keen understanding of psychology when discussing the animosity between the states that could be engendered by economic disagreements if the states are not united.

Alexander Hamilton points to three areas of potential economic disagreement. Quoting him in each case,

1. Each State, or separate confederacy, would pursue a system of commercial policy [that is, tariff policy] peculiar to itself.

2. The public debt of the Union would be a further cause of collision between the separate States or confederacies. The apportionment, in the first instance, and the progressive extinguishment afterward, would be alike productive of ill-humor and animosity.

   • How would it be possible to agree upon a rule of apportionment satisfactory to all?

   • There are even dissimilar views among the States as to the general principle of discharging the public debt.

3. Laws in violation of private contracts, as they amount to aggressions on the rights of those States whose citizens are injured by them, may be considered as another probable source of hostility.

The psychological reaction to these disagreements is similar whatever the particular cause among these three. Here are some of the key passages Alexander Hamilton pens on that score:

• … distinctions, preferences, and exclusions … would beget discontent.

• The habits of intercourse, on the basis of equal privileges, to which we have been accustomed since the earliest settlement of the country, would give a keener edge to those causes of discontent than they would naturally have independent of this circumstance.

• WE SHOULD BE READY TO DENOMINATE INJURIES THOSE THINGS WHICH WERE IN REALITY THE JUSTIFIABLE ACTS OF INDEPENDENT SOVEREIGNTIES CONSULTING A DISTINCT INTEREST. [All caps is in the original]

• It is not at all probable that this unbridled spirit would pay much respect to those regulations of trade by which particular States might endeavor to secure exclusive benefits to their own citizens. The infractions of these regulations, on one side, the efforts to prevent and repel them, on the other, would naturally lead to outrages, and these to reprisals and wars.

• There is scarcely any that can be proposed which is entirely free from real objections. These, as usual, would be exaggerated by the adverse interest of the parties.

• The procrastinations of the former would excite the resentments of the latter.

• The citizens of the States interested would clamour; foreign powers would urge for the satisfaction of their just demands, and the peace of the States would be hazarded to the double contingency of external invasion and internal contention.

• Their refusal would be too plausible a pretext to the complaining States to withhold their contributions, not to be embraced with avidity; and the non-compliance of these States with their engagements would be a ground of bitter discussion and altercation.

• … delinquencies in payments on the part of some of the States would result from a diversity of other causes--the real deficiency of resources; the mismanagement of their finances; accidental disorders in the management of the government; and, in addition to the rest, the reluctance with which men commonly part with money for purposes that have outlived the exigencies which produced them, and interfere with the supply of immediate wants. Delinquencies, from whatever causes, would be productive of complaints, recriminations, and quarrels.

• … there is nothing men differ so readily about as the payment of money.

• We are not authorized to expect that a more liberal or more equitable spirit would preside over the legislations of the individual States hereafter, if unrestrained by any additional checks, than we have heretofore seen in too many instances disgracing their several codes.

• We have observed the disposition to retaliation excited in Connecticut in consequence of the enormities perpetrated by the Legislature of Rhode Island …

Below is the relevant section of The Federalist Papers #7 in full, showing the context for these points:

The competitions of commerce would be another fruitful source of contention. The States less favorably circumstanced would be desirous of escaping from the disadvantages of local situation, and of sharing in the advantages of their more fortunate neighbors. Each State, or separate confederacy, would pursue a system of commercial policy peculiar to itself. This would occasion distinctions, preferences, and exclusions, which would beget discontent. The habits of intercourse, on the basis of equal privileges, to which we have been accustomed since the earliest settlement of the country, would give a keener edge to those causes of discontent than they would naturally have independent of this circumstance. WE SHOULD BE READY TO DENOMINATE INJURIES THOSE THINGS WHICH WERE IN REALITY THE JUSTIFIABLE ACTS OF INDEPENDENT SOVEREIGNTIES CONSULTING A DISTINCT INTEREST. The spirit of enterprise, which characterizes the commercial part of America, has left no occasion of displaying itself unimproved. It is not at all probable that this unbridled spirit would pay much respect to those regulations of trade by which particular States might endeavor to secure exclusive benefits to their own citizens. The infractions of these regulations, on one side, the efforts to prevent and repel them, on the other, would naturally lead to outrages, and these to reprisals and wars.

The opportunities which some States would have of rendering others tributary to them by commercial regulations would be impatiently submitted to by the tributary States. The relative situation of New York, Connecticut, and New Jersey would afford an example of this kind. New York, from the necessities of revenue, must lay duties on her importations. A great part of these duties must be paid by the inhabitants of the two other States in the capacity of consumers of what we import. New York would neither be willing nor able to forego this advantage. Her citizens would not consent that a duty paid by them should be remitted in favor of the citizens of her neighbors; nor would it be practicable, if there were not this impediment in the way, to distinguish the customers in our own markets. Would Connecticut and New Jersey long submit to be taxed by New York for her exclusive benefit? Should we be long permitted to remain in the quiet and undisturbed enjoyment of a metropolis, from the possession of which we derived an advantage so odious to our neighbors, and, in their opinion, so oppressive? Should we be able to preserve it against the incumbent weight of Connecticut on the one side, and the co-operating pressure of New Jersey on the other? These are questions that temerity alone will answer in the affirmative.

The public debt of the Union would be a further cause of collision between the separate States or confederacies. The apportionment, in the first instance, and the progressive extinguishment afterward, would be alike productive of ill-humor and animosity. How would it be possible to agree upon a rule of apportionment satisfactory to all? There is scarcely any that can be proposed which is entirely free from real objections. These, as usual, would be exaggerated by the adverse interest of the parties. There are even dissimilar views among the States as to the general principle of discharging the public debt. Some of them, either less impressed with the importance of national credit, or because their citizens have little, if any, immediate interest in the question, feel an indifference, if not a repugnance, to the payment of the domestic debt at any rate. These would be inclined to magnify the difficulties of a distribution. Others of them, a numerous body of whose citizens are creditors to the public beyond proportion of the State in the total amount of the national debt, would be strenuous for some equitable and effective provision. The procrastinations of the former would excite the resentments of the latter. The settlement of a rule would, in the meantime, be postponed by real differences of opinion and affected delays. The citizens of the States interested would clamour; foreign powers would urge for the satisfaction of their just demands, and the peace of the States would be hazarded to the double contingency of external invasion and internal contention.

Suppose the difficulties of agreeing upon a rule surmounted, and the apportionment made. Still there is great room to suppose that the rule agreed upon would, upon experiment, be found to bear harder upon some States than upon others. Those which were sufferers by it would naturally seek for a mitigation of the burden. The others would as naturally be disinclined to a revision, which was likely to end in an increase of their own incumbrances. Their refusal would be too plausible a pretext to the complaining States to withhold their contributions, not to be embraced with avidity; and the non-compliance of these States with their engagements would be a ground of bitter discussion and altercation. If even the rule adopted should in practice justify the equality of its principle, still delinquencies in payments on the part of some of the States would result from a diversity of other causes--the real deficiency of resources; the mismanagement of their finances; accidental disorders in the management of the government; and, in addition to the rest, the reluctance with which men commonly part with money for purposes that have outlived the exigencies which produced them, and interfere with the supply of immediate wants. Delinquencies, from whatever causes, would be productive of complaints, recriminations, and quarrels. There is, perhaps, nothing more likely to disturb the tranquillity of nations than their being bound to mutual contributions for any common object that does not yield an equal and coincident benefit. For it is an observation, as true as it is trite, that there is nothing men differ so readily about as the payment of money.

Laws in violation of private contracts, as they amount to aggressions on the rights of those States whose citizens are injured by them, may be considered as another probable source of hostility. We are not authorized to expect that a more liberal or more equitable spirit would preside over the legislations of the individual States hereafter, if unrestrained by any additional checks, than we have heretofore seen in too many instances disgracing their several codes. We have observed the disposition to retaliation excited in Connecticut in consequence of the enormities perpetrated by the Legislature of Rhode Island; and we reasonably infer that, in similar cases, under other circumstances, a war, not of PARCHMENT, but of the sword, would chastise such atrocious breaches of moral obligation and social justice.

In the first half or The Federalist Papers #7, Alexander Hamilton talks about the likelihood of territorial disputes if the states are not part of a union. (See “The Federalist Papers #7 A: Divided, the States Would Fall into Territorial Disputes Likely to Lead to War Between the States—Alexander Hamilton.”) In the final paragraph of The Federalist Papers #7 Alexander Hamilton goes in a bit different direction, repeating an argument given by John Jay in The Federalist Papers #5. (See “The Federalist Papers #5: Unless United, the States Will Be at Each Others' Throats.”) Here is how he seconds that argument:

The probability of incompatible alliances between the different States or confederacies and different foreign nations, and the effects of this situation upon the peace of the whole, have been sufficiently unfolded in some preceding papers. From the view they have exhibited of this part of the subject, this conclusion is to be drawn, that America, if not connected at all, or only by the feeble tie of a simple league, offensive and defensive, would, by the operation of such jarring alliances, be gradually entangled in all the pernicious labyrinths of European politics and wars; and by the destructive contentions of the parts into which she was divided, would be likely to become a prey to the artifices and machinations of powers equally the enemies of them all. Divide et impera [divide and command] must be the motto of every nation that either hates or fears us. [In order that the whole subject of these papers may as soon as possible be laid before the public, it is proposed to publish them four times a week--on Tuesday in the New York Packet and on Thursday in the Daily Advertiser.]

PUBLIUS.

Here are links to my other posts on The Federalist Papers so far:

• The Federalist Papers #1: Alexander Hamilton's Plea for Reasoned Debate

• The Federalist Papers #2 A: John Jay on the Idea of America

• The Federalist Papers #2 B: You Trusted the Continental Congress; Trust the Constitutional Convention

• The Federalist Papers #3: United, the 13 States are Less Likely to Stumble into War

• The Federalist Papers #4 A: The States Must Be Prepared to Defend against Aggression by Other Nations

• The Federalist Papers #4 B: National Defense Will Be Stronger if the States are United

• The Federalist Papers #5: Unless United, the States Will Be at Each Others' Throats

• The Federalist Papers #6 A: Alexander Hamilton on the Many Human Motives for War

• The Federalist Papers #6 B: Commercial Republics Also Start Wars with Their Neighbors—Alexander Hamilton

• The Federalist Papers #7 A: Divided, the States Would Fall into Territorial Disputes Likely to Lead to War Between the States—Alexander Hamilton